Immune activation is a hallmark of systemic sclerosis (SSc). However, the immunological alterations that occur in preclinical and non-fibrotic SSc and that differentiate these subjects from those with primary Raynaud's phenomenon (PRP) or healthy controls (HC) are poorly defined. We isolated CD56+ (NK/NKT-like) cells from HC, patients with PRP, early SSc (EaSSc) and definite SSc without skin or lung fibrosis. Cytokine production upon different activating stimuli was measured via a multiplex immuno assay. Clearly discriminative patterns among the different stages of SSc were most markedly observed after TLR1/2 stimulation, with increased IL-6, TNF-α and MIP-1α/CCL3 production in definite SSc patients as compared to HC and/or PRP. Initial alterations were observed in EaSSc patients with an intermediate secretion pattern between HC/PRP and definite SSc. CD56+ cells from patients at different stages of SSc differentially respond to TLR stimulation, highlighting the relevance of natural immunity in the developmental and pre-fibrotic SSc.
The magnitude of cytokine production by stimulated CD56+ cells is associated with early stages of systemic sclerosis / M. Cossu, L. van Bon, S. Nierkens, C. Bellocchi, A. Santaniello, H. Dolstra, L. Beretta, T.R.D.J. Radstake. - In: CLINICAL IMMUNOLOGY. - ISSN 1521-6616. - 173:(2016), pp. 76-80. [10.1016/j.clim.2016.09.004]
The magnitude of cytokine production by stimulated CD56+ cells is associated with early stages of systemic sclerosis
C. Bellocchi;A. Santaniello;
2016
Abstract
Immune activation is a hallmark of systemic sclerosis (SSc). However, the immunological alterations that occur in preclinical and non-fibrotic SSc and that differentiate these subjects from those with primary Raynaud's phenomenon (PRP) or healthy controls (HC) are poorly defined. We isolated CD56+ (NK/NKT-like) cells from HC, patients with PRP, early SSc (EaSSc) and definite SSc without skin or lung fibrosis. Cytokine production upon different activating stimuli was measured via a multiplex immuno assay. Clearly discriminative patterns among the different stages of SSc were most markedly observed after TLR1/2 stimulation, with increased IL-6, TNF-α and MIP-1α/CCL3 production in definite SSc patients as compared to HC and/or PRP. Initial alterations were observed in EaSSc patients with an intermediate secretion pattern between HC/PRP and definite SSc. CD56+ cells from patients at different stages of SSc differentially respond to TLR stimulation, highlighting the relevance of natural immunity in the developmental and pre-fibrotic SSc.File | Dimensione | Formato | |
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