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Int. J. Mol. Sci. 2012, 13(10), 13667-13679; doi:10.3390/ijms131013667
Article

Interleukin-6 Gene Promoter-572 C Allele May Play a Role in Rate of Disease Progression in Multiple Sclerosis

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Received: 2 August 2012; in revised form: 20 September 2012 / Accepted: 27 September 2012 / Published: 22 October 2012
(This article belongs to the Special Issue Recent Advances in the Research of Multiple Sclerosis)
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Abstract: Multiple sclerosis (MS) is an inflammatory demyelinating disease affecting the central nervous system. Although the exact pathogenesis of MS is unknown, it is generally considered to be an autoimmune disease, with numerous genetic and environmental factors determining disease susceptibility and severity. One important mediator of immune responses and inflammation is interleukin-6 (IL-6). Previously, elevated levels of IL-6 in mononuclear cells in blood and in brain tissue from MS patients have been reported. Various polymorphisms in the promoter region of the IL6 gene have also been linked with IL-6 protein levels. In MS, several small studies have investigated whether two IL6 promoter polymorphisms (−597 G>A and −174 G>C) correlate with MS susceptibility, but with varying results. In the present study, we analyzed these polymorphisms, together with an additional polymorphism (−572 G>C) in 279 healthy controls and 509 patients with MS. We found no significant differences between MS patients and healthy controls for the different −597 or −174 IL6 promoter alleles or genotypes. There was a slight reduction in the percentage of individuals with MS who carried a C allele at position −572, although this was not significant after correction for multiple comparisons. Interestingly, however, the −572 C allele showed a significant correlation with the MS severity score, suggesting a possible role in disease progression.
Keywords: multiple sclerosis; Interleukin-6; polymorphism; allele; genotype; disease progression multiple sclerosis; Interleukin-6; polymorphism; allele; genotype; disease progression
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Yan, J.; Liu, J.; Lin, C.Y.; Australia & New Zealand Multiple Sclerosis Genetics Consortium (ANZGene); Csurhes, P.A.; Pender, M.P.; McCombe, P.A.; Greer, J.M. Interleukin-6 Gene Promoter-572 C Allele May Play a Role in Rate of Disease Progression in Multiple Sclerosis. Int. J. Mol. Sci. 2012, 13, 13667-13679.

AMA Style

Yan J, Liu J, Lin CY, Australia & New Zealand Multiple Sclerosis Genetics Consortium (ANZGene), Csurhes PA, Pender MP, McCombe PA, Greer JM. Interleukin-6 Gene Promoter-572 C Allele May Play a Role in Rate of Disease Progression in Multiple Sclerosis. International Journal of Molecular Sciences. 2012; 13(10):13667-13679.

Chicago/Turabian Style

Yan, Jun; Liu, Jia; Lin, Clement Yihao; Australia & New Zealand Multiple Sclerosis Genetics Consortium (ANZGene); Csurhes, Peter A.; Pender, Michael P.; McCombe, Pamela A.; Greer, Judith M. 2012. "Interleukin-6 Gene Promoter-572 C Allele May Play a Role in Rate of Disease Progression in Multiple Sclerosis." Int. J. Mol. Sci. 13, no. 10: 13667-13679.


Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert