Abstract
Although complexin 1 (CPLX1) is not known as an inflammation factor, recent identification of a complexin 1 (CPLX1) polymorphism in Behçet’s disease (BD) has sparked an interest in the role of this molecule in autoinflammation. DNA samples were isolated from peripheral blood mononuclear cells (PBMC) of BD and neuro-Behçet’s disease (NBD) patients and expression levels of CPLX1 and miR-185, a predicted target miRNA for CPLX1 and an inflammation-related miRNA, were investigated by real time PCR assays. PBMC expression levels of CPLX1 were significantly increased in BD and NBD patients. By contrast, levels of miR-185 were reduced in both patient groups. A moderate inverse correlation was found between levels of CPLX1 and miR-185. No correlation could be found between expression levels and clinical features of patients. Significant expression alterations of CPLX1 in BD and NBD patients suggest that this molecule has a proinflammatory action. The putative role of CPLX1 in BD pathogenesis remains to be further studied.
Similar content being viewed by others
References
Gül A (2005) Behçet’s disease as an autoinflammatory disorder. Curr Drug Targets Inflamm Allergy 4:81–83
Akman-Demir G, Serdaroglu P, Tasçi B (1999) Clinical patterns of neurological involvement in Behçet’s disease: evaluation of 200 patients. The Neuro-Behçet Study Group. Brain 122:2171–2182
Remmers EF, Cosan F, Kirino Y et al (2010) Genome-wide association study identifies variants in the MHC class I, IL10, and IL23R-IL12RB2 regions associated with Behçet’s disease. Nat Genet 42:698–702
Eastwood SL, Harrison PJ (2001) Synaptic pathology in the anterior cingulate cortex in schizophrenia and mood disorders. A review and a western blot study of synaptophysin, GAP-43 and the complexins. Brain Res Bull 55:569–578
Tannenberg RK, Scott HL, Tannenberg AE, Dodd PR (2006) Selective loss of synaptic proteins in Alzheimer’s disease: evidence for an increased severity with APOE varepsilon4. Neurochem Int 49:631–639
International Study Group for Behçet’s Disease (1990) Criteria for diagnosis of Behçet’s disease. Lancet 335:1078–1080
D’Argenio V, Esposito MV, Telese A et al (2015) The molecular analysis of BRCA1 and BRCA2: next-generation sequencing supersedes conventional approaches. Clin Chim Acta 446:221–225
Betel D, Wilson M, Gabow A et al (2008) The microRNA.org resource: targets and expression. Nucleic Acids Res 36:D149–D153
Kim SK, Nam JW, Rhee JK et al (2006) miTarget: microRNA target gene prediction using a support vector machine. BMC Bioinformatics 7:411
Dweep H, Sticht C, Pandey P, Gretz N (2011) miRWalk-database: prediction of possible miRNA binding sites by “walking” the genes of three genomes. J Biomed Inform 44:839–847
Laganà A, Forte S, Giudice A, et al (2009) miRò: a miRNA knowledge base. Database (Oxford) bap008
Keino H, Watanabe T, Taki W, Okada AA (2011) Effect of infliximab on gene expression profiling in Behcet’s disease. Invest Ophthalmol Vis Sci 52:7681–7686
Archer DA, Graham ME, Burgoyne RD (2002) Complexin regulates the closure of the fusion pore during regulated vesicle exocytosis. J Biol Chem 277:18249–18252
Falkowski MA, Thomas DD, Groblewski GE (2010) Complexin 2 modulates vesicle-associated membrane protein (VAMP) 2-regulated zymogen granule exocytosis in pancreatic acini. J Biol Chem 285:35558–35566
Cañete JD, Celis R, Noordenbos T et al (2009) Distinct synovial immunopathology in Behçet disease and psoriatic arthritis. Arthritis Res Ther 11:R17
Woska JR Jr, Gillespie ME (2012) SNARE complex-mediated degranulation in mast cells. J Cell Mol Med 16:649–656
Begemann M, Grube S, Papiol S et al (2010) Modification of cognitive performance in schizophrenia by complexin 2 gene polymorphisms. Arch Gen Psychiatry 67:879–888
Belkaya S, Murray SE, Eitson JL et al (2013) Transgenic expression of microRNA-185 causes a developmental arrest of T cells by targeting multiple genes including Mzb1. J Biol Chem 288:30752–30762
Belver L, de Yébenes VG, Ramiro AR (2010) MicroRNAs prevent the generation of autoreactive antibodies. Immunity 33:713–722
Yu M, Liang W, Wen S et al (2014) EphB2 contributes to human naive B-cell activation and is regulated by miR-185. FASEB J 28:3609–3617
Nogales-Gadea G, Ramos-Fransi A, Suárez-Calvet X et al (2014) Analysis of serum miRNA profiles of myasthenia gravis patients. PLoS ONE 9:e91927
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.
Rights and permissions
About this article
Cite this article
Uğurel, E., Şehitoğlu, E., Tüzün, E. et al. Increased complexin-1 and decreased miR-185 expression levels in Behçet’s disease with and without neurological involvement. Neurol Sci 37, 411–416 (2016). https://doi.org/10.1007/s10072-015-2419-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10072-015-2419-3