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Increased Th17 functions are accompanied by Tregs activities in lupoid leishmaniasis
Author(s) -
Nabavi N. S.,
Pezeshkpoor F.,
Valizadeh N.,
Ahmadi Ghezeldasht S.,
Rezaee S. A.
Publication year - 2018
Publication title -
parasite immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 75
eISSN - 1365-3024
pISSN - 0141-9838
DOI - 10.1111/pim.12507
Subject(s) - foxp3 , immunology , rar related orphan receptor gamma , immune system , leishmaniasis , interleukin 17 , pathogenesis , biology , peripheral blood mononuclear cell , interleukin 10 , cutaneous leishmaniasis , interleukin , retinoic acid , regulatory t cell , il 2 receptor , medicine , cytokine , t cell , gene , biochemistry , in vitro
Summary The immunopathogenesis of lupoid leishmaniasis is challenging. Although an appropriate immune response is critical for controlling these parasites, inappropriate inflammatory reactions can also promote increased pathology. The role of immune modulatory effect of the main transcription factors and cytokines of T regulatory and Th17 cells in pathogenesis of leishmaniasis chronicity was investigated in this study. The gene expression of interleukin‐10 ( IL ‐10 ), transforming growth factor‐β ( TGF ‐ β 1 ), forkhead box P3 ( Foxp3 ), interleukin‐17( IL ‐17A ) and retinoic acid‐related orphan receptor gamma t ( RO rC ) was assessed in peripheral blood mononuclear cells of eighty blood samples from cutaneous leishmaniasis ( CL ) patients with usual lesions (n = 31), lupoid lesions (n = 29) and healthy volunteers (n = 20). Quantitative relative real‐time PCR ( qRT ‐ PCR ) was performed using the Taqman and Sybergreen methods for expression of target genes. Expression of Foxp3 ( P = .013), IL ‐10 ( P < .001) and IL ‐17A ( P < .001) was significantly higher in lupoid patient compare to the nonlupoid group. Expression of Foxp3 ( P < .001), IL ‐10 ( P < .001) and IL ‐17A ( P = .033) was significantly more in nonlupoid subjects than in healthy volunteers, except for ROR γ t . These findings suggest that Foxp3 + cells, IL ‐10 and IL ‐17 play important roles in the immunopathogenesis of CL and that these roles differ depending on the causal leishmania species and different body compartments.