RT Journal Article
SR Electronic
T1 Increased Numbers of CD4<sup>+</sup>CD25<sup>+</sup> and CD8<sup>+</sup>CD25<sup>+</sup> T-Cells in Peripheral Blood of Patients with Rheumatoid Arthritis with Parvovirus B19 Infection
JF In Vivo
JO In Vivo
FD International Institute of Anticancer Research
SP 181
OP 185
VO 31
IS 2
A1 MILDA NACIUTE
A1 GABRIELE MACIUNAITE
A1 DIANA MIELIAUSKAITE
A1 RITA RUGIENE
A1 AUKSE ZINKEVICIENE
A1 MYKOLAS MAURICAS
A1 MODRA MUROVSKA
A1 IRUTE GIRKONTAITE
YR 2017
UL http://iv.iiarjournals.org/content/31/2/181.abstract
AB Aim: To investigate T-cell subpopulations in peripheral blood of human parvovirus B19 DNA-positive (B19+) and -negative (B19−) patients with rheumatoid arthritis (RA) and healthy persons. Patients and Methods: Blood samples were collected from 115 patients with RA and 47 healthy volunteers; 27 patients with RA and nine controls were B19+. Cluster of differentiation (CD) 4, 8, 25 and 45RA were analyzed on blood cells. CD25 expression on CD4+CD45RA+, CD4+CD45RA−, CD8+CD45RA+, CD8+CD45RA− subsets were analyzed by flow cytometry. Results: The percentage of CD25low and CD25hi cells was increased on CD4+CD45RA+, CD4+CD45RA− T-cells and the percentage of CD25+ cells was increased on CD8+CD45RA+, CD8+CD45RA− T-cells of B19+ patients with RA in comparison with B19− patients and controls. Conclusion: Raised levels of CD4 and CD8 regulatory T-cells in B19+ RA patients could cause down-regulation of antiviral clearance mechanisms and lead to activation of persistent human parvovirus B19 infection in patients with RA.