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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 PLoS+One
2015 ; 10
(12
): e0145814
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Analysis of Immune Response Markers in Jorge Lobo s Disease Lesions Suggests the
Occurrence of Mixed T Helper Responses with the Dominance of Regulatory T Cell
Activity
#MMPMID26700881
Azevedo Mde C
; Rosa PS
; Soares CT
; Fachin LR
; Baptista IM
; Woods WJ
; Garlet GP
; Trombone AP
; Belone Ade F
PLoS One
2015[]; 10
(12
): e0145814
PMID26700881
show ga
Jorge Lobo's disease (JLD) is a chronic infection that affects the skin and
subcutaneous tissues. Its etiologic agent is the fungus Lacazia loboi. Lesions
are classified as localized, multifocal, or disseminated, depending on their
location. Early diagnosis and the surgical removal of lesions are the best
therapeutic options currently available for JLD. The few studies that evaluate
the immunological response of JLD patients show a predominance of Th2 response,
as well as a high frequency of TGF-? and IL-10 positive cells in the lesions;
however, the overall immunological status of the lesions in terms of their T cell
phenotype has yet to be determined. Therefore, the objective of this study was to
evaluate the pattern of Th1, Th2, Th17 and regulatory T cell (Treg) markers mRNA
in JLD patients by means of real-time PCR. Biopsies of JLD lesions (N = 102) were
classified according to their clinical and histopathological features and then
analyzed using real-time PCR in order to determine the expression levels of
TGF-?1, FoxP3, CTLA4, IKZF2, IL-10, T-bet, IFN-?, GATA3, IL-4, IL-5, IL-13,
IL-33, RORC, IL-17A, IL-17F, and IL-22 and to compare these levels to those of
healthy control skin (N = 12). The results showed an increased expression of
FoxP3, CTLA4, TGF-?1, IL-10, T-bet, IL-17F, and IL-17A in lesions, while GATA3
and IL-4 levels were found to be lower in diseased skin than in the control
group. When the clinical forms were compared, TGF-?1 was found to be highly
expressed in patients with a single localized lesion while IL-5 and IL-17A levels
were higher in patients with multiple/disseminated lesions. These results
demonstrate the occurrence of mixed T helper responses and suggest the dominance
of regulatory T cell activity, which could inhibit Th-dependent protective
responses to intracellular fungi such as L. loboi. Therefore, Tregs may play a
key role in JLD pathogenesis.