Expression of TNFα membrane-bound receptors in the peripheral blood mononuclear cells (PMBC) in rheumatoid arthritis patients.

Autor: Sennikov SV; Laboratory of Molecular Immunology, Federal State Budgetary Scientific Institution 'Research Institute of Fundamental and Clinical Immunology', Yadrintsevskaya Str., 14, Novosibirsk 630099, Russia. Electronic address: sennikovsv@gmail.com., Alshevskaya AA; Laboratory of Molecular Immunology, Federal State Budgetary Scientific Institution 'Research Institute of Fundamental and Clinical Immunology', Yadrintsevskaya Str., 14, Novosibirsk 630099, Russia. Electronic address: alkkina@yandex.ru., Shkaruba NS; Rheumatology Department, Federal State Budgetary Scientific Institution 'Research Institute of Fundamental and Clinical Immunology', Yadrintsevskaya Str., 14, Novosibirsk 630099, Russia. Electronic address: sen-nadezhda@yandex.ru., Chumasova OA; Rheumatology Department, Federal State Budgetary Scientific Institution 'Research Institute of Fundamental and Clinical Immunology', Yadrintsevskaya Str., 14, Novosibirsk 630099, Russia. Electronic address: chumoks@mail.ru., Sizikov AE; Rheumatology Department, Federal State Budgetary Scientific Institution 'Research Institute of Fundamental and Clinical Immunology', Yadrintsevskaya Str., 14, Novosibirsk 630099, Russia. Electronic address: depaidici@online.nsk.su., Lopatnikova JA; Laboratory of Molecular Immunology, Federal State Budgetary Scientific Institution 'Research Institute of Fundamental and Clinical Immunology', Yadrintsevskaya Str., 14, Novosibirsk 630099, Russia. Electronic address: lopatnikova_j_a@ngs.ru.
Jazyk: angličtina
Zdroj: Cytokine [Cytokine] 2015 Jun; Vol. 73 (2), pp. 288-94. Date of Electronic Publication: 2015 Mar 29.
DOI: 10.1016/j.cyto.2015.01.015
Abstrakt: Objective: To investigate the expression of TNFα membrane-bound receptors: the percentage of cells expressing these receptors and the number of molecules expressed on different immune cell subsets, and to evaluate serum concentrations of soluble TNFα and its receptors (sTNFRI and sTNFRII) in patients with rheumatoid arthritis in acute stage and after response to treatment compared to healthy donors.
Methods: The objects of the study are peripheral blood mononuclear cells (PBMC) of healthy donors (n=150) and RA patients (n=40) subjected to hospital treatment with either biological agents (Rituximab) or glucocorticosteroids (methylprednisolone). To determine PBMC phenotype antibodies anti-hCD3-APC, anti-hCD19 PECy7, anti-hCD14 FITC (eBioscience), as well as anti-hTNFRI-PE and anti-hTNFRII-PE (R&D Systems) were used. To determine receptor number on the cells Quantibrite PE Beads (BD) were used.
Results: Cells obtained from patients who responded to therapy and achieved disease remission exhibited either an increase in the percentage of TNFRI+ cells or elevated expression density of this receptor type.
Conclusion: Subsets of immunocompetent cells from RA patients show variation in the percentage of membrane-bound receptor positive cells and receptor expression density, which influences the development and progression of the pathological processes in RA. Response to therapy and achievement of disease remission are associated with an increase of TNFRI expression.
(Copyright © 2015 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: