Development of a functional cDNA array for evaluation of the Th1/Th2 balance

Area of Science:

• Immunology
• Molecular Biology
• Genetics

Background:

• Immune balance, regulated by CD4(+) T helper 1 (Th1) and T helper 2 (Th2) cells, is vital for immunoregulation.
• Imbalances in Th1/Th2 cells are linked to various immune pathologies, including infections, allergies, and autoimmune diseases.
• Accurate diagnosis of Th1/Th2 imbalances is crucial for effective treatment of immune-related disorders.

Purpose of the Study:

• To develop a novel diagnostic system for assessing Th1/Th2 cell balance.
• To create a functional cDNA array filter for prompt and precise evaluation of Th1/Th2 skewing in mice.
• To provide a tool for understanding immune dysregulation in various diseases.

Main Methods:

• Developed a specialized cDNA array filter containing 40 Th1-specific and 32 Th2-specific genes, selected from over 8700 genes.
• Gene selection criteria included expression specificity and sufficient expression levels for DNA array detection.
• Utilized a calculation algorithm and visual alignment for evaluating Th1/Th2 balance bias.

Main Results:

• The array filter enabled rapid and precise assessment of Th1/Th2 balance skewing.
• Visual evaluation of gene alignment on the filter allowed for quick identification of immune bias.
• Successfully applied the array filter to evaluate Th1/Th2 balance in vivo during acute graft-versus-host disease (GVHD).

Conclusions:

• The developed cDNA array filter is an effective tool for evaluating Th1/Th2 balance.
• This novel system offers a prompt and precise method for diagnosing immune imbalances.
• The array filter has potential applications in studying and diagnosing a wide range of immune diseases.