AID Biology: A pathological and clinical perspective

Area of Science:

• Immunology
• Molecular Biology
• Genetics

Background:

• Activation-induced cytidine deaminase (AID) is essential for adaptive immunity, mediating antibody gene diversification via somatic hypermutation (SHM) and class-switch recombination (CSR).
• AID functions by deaminating deoxycytidines to deoxyuridines, introducing mutations and DNA breaks.
• While vital for antibody diversification, non-physiological AID activity contributes to immune diseases and cancer.

Purpose of the Study:

• To provide a comprehensive understanding of Activation-induced cytidine deaminase (AID) biology, encompassing its physiological and pathological roles.
• To review recent advances in AID biology and its implications for immune diseases and cancer.
• To explore challenges and opportunities in developing AID-related cancer therapeutics and improving clinical outcomes.

Main Methods:

• Literature review of recent advances in AID biology.
• Analysis of physiological and pathological roles of AID.
• Discussion of therapeutic strategies and clinical trial design for AID-related conditions.

Main Results:

• AID's dual role in beneficial antibody diversification and detrimental disease pathogenesis is highlighted.
• Recent evidence on AID's involvement in various chronic immune diseases and cancers is summarized.
• Potential clinical insights derived from AID biology for improved patient prognosis and disease management are discussed.

Conclusions:

• A deeper understanding of AID biology is critical for addressing its pathological roles in immune diseases and cancer.
• Translating insights into novel therapeutic strategies and clinical trials holds promise for improving patient outcomes.
• Further research into AID's mechanisms and therapeutic targeting is warranted.