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Published in: Inflammation Research 3/2017

01-03-2017 | Original Research Paper

Inflammatory protein response in CDKL5-Rett syndrome: evidence of a subclinical smouldering inflammation

Authors: Alessio Cortelazzo, Claudio de Felice, Silvia Leoncini, Cinzia Signorini, Roberto Guerranti, Roberto Leoncini, Alessandro Armini, Luca Bini, Lucia Ciccoli, Joussef Hayek

Published in: Inflammation Research | Issue 3/2017

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Abstract

Background

Mutations in the cyclin-dependent kinase-like 5 gene cause a clinical variant of Rett syndrome (CDKL5-RTT). A role for the acute-phase response (APR) is emerging in typical RTT caused by methyl-CpG-binding protein 2 gene mutations (MECP2-RTT). No information is, to date, available on the inflammatory protein response in CDKL5-RTT. We evaluated, for the first time, the APR protein response in CDKL5-RTT.

Methods

Protein patterns in albumin- and IgG-depleted plasma proteome from CDKL5-RTT patients were evaluated by two-dimensional gel electrophoresis/mass spectrometry. The resulting data were related to circulating cytokines and compared to healthy controls or MECP2-RTT patients. The effects of omega-3 polyunsaturated fatty acids (ω-3 PUFAs) were evaluated.

Results

CDKL5-RTT mutations resulted in a subclinical attenuated inflammation, specifically characterized by an overexpression of the complement component C3 and CD5 antigen-like, both strictly related to the inflammatory response. Cytokine dysregulation featuring a bulk increase of anti-inflammatory cytokines, predominantly IL-10, could explain the unchanged erythrocyte sedimentation rate and atypical features of inflammation in CDKL5-RTT. Omega-3 PUFAs were able to counterbalance the pro-inflammatory status.

Conclusion

For the first time, we revealed a subclinical smouldering inflammation pattern in CDKL5-RTT consisting in the coexistence of an atypical APR coupled with a dysregulated cytokine response.
Appendix
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Metadata
Title
Inflammatory protein response in CDKL5-Rett syndrome: evidence of a subclinical smouldering inflammation
Authors
Alessio Cortelazzo
Claudio de Felice
Silvia Leoncini
Cinzia Signorini
Roberto Guerranti
Roberto Leoncini
Alessandro Armini
Luca Bini
Lucia Ciccoli
Joussef Hayek
Publication date
01-03-2017
Publisher
Springer International Publishing
Published in
Inflammation Research / Issue 3/2017
Print ISSN: 1023-3830
Electronic ISSN: 1420-908X
DOI
https://doi.org/10.1007/s00011-016-1014-2

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