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© Jacob SEELER & Anne DEJEAN, Institut Pasteur
Immunostaining of PML nuclear bodies involved in acute promyelocytic leukemia
Publication : Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases

Common polymorphic effectors of immunity against hepatitis B and C modulate susceptibility to infection and spontaneous clearance in a Moroccan population

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases - 04 May 2014

Rebbani K, Ezzikouri S, Marchio A, Ababou M, Kitab B, Dejean A, Kandil M, Pineau P, Benjelloun S

Link to Pubmed [PMID] – 24797387

Infect. Genet. Evol. 2014 Aug;26:1-7

Chronic diseases caused by hepatitis B and C viruses may evolve towards major complications as liver cirrhosis and cancer. Fortunately, only subsets among acutely infected individuals develop a persistent disease suggesting that genetic susceptibility may influence the establishment of chronicity. In the present study we aim to explore variants distribution in genes encoding for important immune response effectors in chronic hepatitis B and C. We intend to identify common features and to establish connections between single nucleotide polymorphisms (SNPs) predisposing to both chronic hepatitis and spontaneous clearance in a Moroccan population. Ten SNPs mapping on seven candidate genes (CD209, TGFβ-1, CCR5, CCL2, CXCL12, SUMO1 and UBC9) were studied in 544 Moroccan subjects grouped in chronically infected patients, spontaneously resolved individuals, liver disease progressors and healthy controls. Among significant associations found between virus infections and genetic variants, we report for the first time an association of rs4804803 (CD209) A and G variants with susceptibility to HBV infection and spontaneous clearance (p<0.001, OR=3.53, 95% CI 2.155; 5.908, and p<0.001, OR=7.75, 95% CI 4.646-13.114, respectively). Other important, albeit previously unknown, association was found between SUMO1 rs10185956T variant and spontaneous clearance of HCV infection (p=0.002, OR=2.71, 95% CI 1.332-5.869). Our observation, that deserves further confirmation with other SNPs and populations, underlines the involvement of selected immune polymorphisms, among which those in CD209, in the natural history of both chronic hepatitis B and C.

http://www.ncbi.nlm.nih.gov/pubmed/24797387