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The Role of Interleukin-11 in the Development of the Autoimmune Response in Multiple Sclerosis


ABSTRACT: Our results introduce interleukin (IL)-11 as a new cytokine that may play a role in the development of the autoimmune response in patients with relapsing remitting multiple sclerosis (RR MS). IL-11 was found to be the highest up-regulated cytokine in the serum and cerebrospinal fluid (CSF) from patients with clinically isolated syndrome (CIS) suggestive of MS. It was also increased in the serum and CSF of patients with clinically definitive RRMS and during the clinical relapses of the disease. CD4+ cells represent a predominant cell source of IL-11 in the peripheral circulation, and the percentage of IL-11+CD4+ cells is significantly increased in CIS patients in comparison to healthy controls (HCs). Furthermore, we have identified IL-11 as a new Th17-promoting cytokine. IL-11 induces a differentiation of naïve CD4+ T cells into Th17 cells, as well as Th17 memory cell expansion, characterized by secretion of IL-17A, IL-17F, IL-21 and IL-22. Since the Th17 cytokines IL-17F, IL-21 and TNF- induced differentiation of naïve cells in the IL-11-secreting CD4+ cells, we propose that cross-talk between IL-11+CD4+ and Th17-cells may play a role in the initiation and propagation of the autoimmune response in RRMS. PBMCs were separated from 15 CIS patients and 7 HCs, and the total RNA was extracted and used for gene array hybridization as described previously. To detect differential gene expression profiles between the CIS patients and HCs, a two class paired test of significance analysis was used. In order to capture complex gene expression changes in the PBMCs derived from 15 CIS patients in comparison to 7 HCs, we performed a comprehensive study using Affymetrix Human Gene array U133 (HG-U133) with 45,000 probe sets representing approximately 33,000 human genes. The arrays were hybridized for 16 h at 45oC in a GeneChip® Hybridization Oven 640 (Affymetrix), washed and stained with R-phycoerythrin streptavidin in a GeneChip® Fluidics Station 400 (Affymetrix). The arrays were scanned with a Hewlett Packard GeneArray Scanner. Affymetrix GeneChip® Microarray Suite 5.0 software was used for washing, scanning, and basic analysis. To detect differential gene expression profiles between the CIS patients and HCs, a two class paired test of significance analysis of microarrays was used. Differentially expressed genes were determined using a Welch two sample t-test. A p<0.05 was considered significant.

ORGANISM(S): Homo sapiens

SUBMITTER: Silva Markovic-Plese 

PROVIDER: E-GEOD-59085 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

IL-11 Induces Th17 Cell Responses in Patients with Early Relapsing-Remitting Multiple Sclerosis.

Zhang Xin X   Tao Yazhong Y   Chopra Manisha M   Dujmovic-Basuroski Irena I   Jin Jianping J   Tang Yunan Y   Drulovic Jelena J   Markovic-Plese Silva S  

Journal of immunology (Baltimore, Md. : 1950) 20150420 11


Clinically isolated syndrome (CIS) suggestive of multiple sclerosis (MS) is the earliest clinically evident phase of the disease, which may provide valuable insight into the molecular mechanisms of the initiation of the autoimmune response in MS. Our results introduce IL-11 as a new cytokine that plays a role in the autoimmune response in the early phase of the disease. IL-11 is the highest upregulated cytokine in the sera and cerebrospinal fluid from CIS patients, which is also increased in pat  ...[more]

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