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2015 ; 12
(ä): 100
Nephropedia Template TP
gab.com Text
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Abnormal CD4?+?T helper (Th) 1 cells and activated memory B cells are associated
with type III asymptomatic mixed cryoglobulinemia in HCV infection
#MMPMID26129991
Kong F
; Zhang W
; Feng B
; Zhang H
; Rao H
; Wang J
; Cong X
; Wei L
Virol J
2015[Jul]; 12
(ä): 100
PMID26129991
show ga
BACKGROUND: Mixed cryoglobulinemia (MC) in hepatitis C virus (HCV) infection is
associated with abnormal immune responses mediated by T cells and B cells, while
the relationships of different subsets of CD4?+?T helper (Th) cells, B cells and
associated cytokines with type III asymptomatic MC in HCV infection are poorly
understood. METHODS: Fifty-four chronic hepatitis C (CHC) patients and 23 healthy
controls (HCs) were enrolled in the study. Serum cryoglobulins were detected by
cryoprecipitation. The types of cryoglobulin were determined by western blot. The
phenotypes and frequencies of Th cell and B cell subsets were detected by flow
cytometric analysis. The cytokines IFN-?, IL-4, IL-17, IL-21, IL-22, and TGF-?
were measured by enzyme-linked immunosorbent assay. RESULTS: Twenty-six CHC
patients were detected with type III asymptomatic MC. The frequencies of Th2,
Th17, follicular helper T (Tfh cells), Th22, and tissue-like B cells were
significantly higher in CHC patients compared to HCs, while these cell subsets
were not significantly different between CHC patients and HCV-related MC
patients. The frequencies of Th1 and activated memory B cells increased in
HCV-related MC patients compared to HCs, although the difference between the two
cell subsets in CHC patients and HCs was not significant. The frequency of
regulatory T cells (Treg cells) was higher in CHC patients than in HCV-related MC
patients and HCs. Higher expressions of serum IFN-?, IL-17, IL-21, and IL-22 were
observed in CHC patients than in HCs, but the differences were not significantly
different in CHC patients and HCV-related MC patients. The frequency of Th1 cells
was associated with activated memory B cells in HCV-related MC patients, and the
frequency of Th1 cells and activated memory B cells was closely related to HCV
RNA in HCV-related MC patients. CONCLUSIONS: The increased frequencies of Th17
cells, Tfh cells, Th22 cells, Treg cells, cytokines IL-17, IL-21, IL-22, and
tissue-like B cells, were related to HCV infection but not type III asymptomatic
MC. Higher frequencies of Th1 cells and activated memory B cells were associated
with type III asymptomatic MC in HCV infection.