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Koutsounaki, E. et al.

Eirini Koutsounaki, George N. Goulielmos, Mary Koulentaki, Christianna Choulaki, Elias Kouroumalis, Emmanouil Galanakis,

Mannose-binding lectin MBL2 gene polymorphisms and outcome of hepatitis C virus-infected patients.

INTRODUCTION: Mannose-binding lectin (MBL) is involved in host's response to several infections including hepatitis B but little is known about MBL and hepatitis C virus (HCV) infection. The present study attempts to investigate whether MBL2 genotype and serum MBL levels affect the course of HCV infection. RESULTS AND DISCUSSIONS: We investigated the variant alleles in MBL2 gene promoter and exon-1 regions in 80 Caucasian HCV-infected patients. Mutations in MBL2 were determined by polymerase chain reaction and restriction fragment length polymorphisms analysis. Serum MBL levels were measured by ELISA. Polymorphism homozygosity in exon-1 region was significantly related to lower serum MBL levels (p < 0.001), to liver inflammation (p = 0.034, OR = 11.7) and, in a lesser degree, to fibrosis. Polymorphisms in promoter sites -221nt and -550nt were not shown to be related with serum MBL levels or progress to liver inflammation and fibrosis. Serum MBL levels were adversely associated with progression to fibrosis (p = 0.037). Response to antiviral treatment was related to hepatitis C virus genotype (p < 0.001, OR = 10.9), but not to MBL2 genotype or serum MBL levels. CONCLUSION: These findings suggest that polymorphisms in MBL2 gene exon-1 region are related to low serum MBL levels and progression of HCV infection to liver inflammation and fibrosis.[1]

References

Mannose-binding lectin MBL2 gene polymorphisms and outcome of hepatitis C virus-infected patients. Koutsounaki, E., Goulielmos, G.N., Koulentaki, M., Choulaki, C., Kouroumalis, E., Galanakis, E. J. Clin. Immunol. (2008) [Pubmed]

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