Salivary anti-coxsackievirus-B4 neutralizing activity and pattern of immune parameters in patients with type 1 diabetes: a pilot study. - Université de Lille Accéder directement au contenu
Article Dans Une Revue Acta Diabetologica Année : 2018

Salivary anti-coxsackievirus-B4 neutralizing activity and pattern of immune parameters in patients with type 1 diabetes: a pilot study.

Résumé

Aims Enteroviruses, especially coxsackieviruses B (CV-B), have been associated with the pathogenesis of type 1 diabetes (T1D). An anti-CV-B4 neutralizing activity in saliva of T1D patients was previously reported. Our aim was to study the association between the saliva anti-CV-B4 neutralizing activity and immune parameters in T1D patients in comparison with non-diabetic individuals. Methods Saliva and blood samples were collected from 15 T1D patients and 8 controls. The anti-CV-B4 and anti-poliovirus type 1 (PV-1) activities of saliva and serum samples were determined by a plaque neutralization assay. Quantification of serum cytokines was performed by ELISA and the frequencies of lymphocyte subsets were evaluated using flow cytometry. Results The levels of salivary anti-CV-B4 neutralizing activity were higher in T1D patients than in controls (p = 0.02), whereas the serum levels of anti-CV-B4 neutralizing activity and the saliva and serum levels of anti-PV-1 neutralizing activity were not different. The proportions of effector CD4+ T cells and CD19+ B cells, but not those of CD4+ T cells, CD8+ T cells and Foxp3+ regulatory T cells, were higher in T1D patients than in controls (p = 0.02 and p = 0.01 respectively). Moreover, serum IFN-γ levels were lower in T1D patients compared to controls (p = 0.03) while IL-4 and IL-10 were not different. There was an association between saliva anti-CV-B4 activity, down-regulation of IFN-γ and B cell expansion in peripheral blood of T1D patients. Conclusion The association between saliva anti-CV-B4 activity and disturbance of immune system in T1D patients deserves further investigation.
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Dates et versions

hal-04452990 , version 1 (12-02-2024)

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Citer

Magloire Pandoua Nekoua, Akadiri Yessoufou, Enagnon Kazali Alidjinou, Francis Badia-Boungou, Karibou Moutairou, et al.. Salivary anti-coxsackievirus-B4 neutralizing activity and pattern of immune parameters in patients with type 1 diabetes: a pilot study.. Acta Diabetologica, 2018, Acta Diabetologica, 55, pp.827-834. ⟨10.1007/s00592-018-1158-3⟩. ⟨hal-04452990⟩

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