Association between LAG3/CD4 Genes Variants and Risk for Multiple Sclerosis

Area of Science:

• Immunogenetics
• Neuroimmunology
• Human Genetics

Background:

• Lymphocyte Activation Gene 3 (LAG3) protein involvement in multiple sclerosis (MS) inflammation is suggested.
• Previous studies on the association between LAG3 gene variants and MS risk remain inconclusive.

Purpose of the Study:

• To investigate the association between common single nucleotide variants (SNVs) in the CD4 and LAG3 genes and the risk of MS.
• To analyze the influence of these SNVs on MS characteristics such as age at onset, severity, and clinical subtypes.

Main Methods:

• Genotyping of CD4 rs1922452, CD4 rs951818, and LAG3 rs870849 using TaqMan-based qPCR assays.
• Study included 300 MS patients and 400 healthy controls from the Caucasian Spanish population.
• Analysis of genotype frequencies in relation to MS risk, clinical parameters, and HLADRB1*1501 genotype.

Main Results:

• No significant association was found between the studied CD4 and LAG3 SNVs (rs1922452, rs951818, rs870849) and the risk of MS.
• The frequencies of these genotypes and allelic variants were unrelated to gender, age at onset, MS severity, clinical subtype, or HLADRB1*1501 genotype.

Conclusions:

• The investigated CD4 and LAG3 single nucleotide variants do not appear to contribute to MS susceptibility in the Caucasian Spanish population.
• Further research may be needed to explore other genetic factors or pathways involved in MS pathogenesis.