Association between functional CD24 polymorphisms and susceptibility to autoimmune diseases: A meta-analysis

Area of Science:

• Genetics
• Immunology
• Molecular Biology

Background:

• Autoimmune diseases arise from the immune system mistakenly attacking the body's own tissues.
• Genetic factors play a crucial role in the susceptibility to autoimmune diseases.
• Specific gene polymorphisms, such as those in CD24, are being investigated for their potential links to disease development.

Purpose of the Study:

• To investigate the association between functional CD24 A57V and TG/del polymorphisms and the risk of developing autoimmune diseases.
• To conduct a comprehensive meta-analysis of existing studies to determine the genetic contribution of these CD24 polymorphisms.

Main Methods:

• A meta-analysis was performed on 26 comparative studies, including 7,507 patients and 8,803 controls.
• Associations were analyzed using allele contrast, and recessive, dominant, and co-dominant genetic models.
• Statistical significance was determined using odds ratios (OR) and confidence intervals (CI).

Main Results:

• A significant association was found between the CD24 Val allele and overall autoimmune disease susceptibility (OR = 1.285, p = 1.0 × 10-9).
• The CD24 Val allele was significantly associated with multiple sclerosis (MS) and systemic lupus erythematosus (SLE).
• The CD24 TG-deletion allele showed significant associations with MS and Crohn's disease (CD), while the Val/Val genotype was linked to ulcerative colitis (UC).

Conclusions:

• The functional CD24 A57V and TG/del polymorphisms are associated with susceptibility to multiple autoimmune diseases, including MS, SLE, UC, and CD.
• These findings highlight the role of CD24 gene variations in the pathogenesis of autoimmune disorders.
• Further research may elucidate the precise mechanisms by which these polymorphisms influence immune responses and disease risk.