Advances in basic and clinical immunology in 2009.

Area of Science:

• Basic and clinical immunology
• Human disease mechanisms
• Molecular pathogenesis

Background:

• 2009 saw increased focus on human disease mechanisms and management in immunology.
• Exploration of molecular pathogenesis in familial angioedema linked to estrogen.
• Investigated factors affecting angioedema severity, including bradykinin pathway gene polymorphisms.

Purpose of the Study:

• To review key advancements in immunology research from 2009.
• To highlight progress in understanding and managing various immune-related disorders.
• To update on new classifications and genetic defects in primary immunodeficiencies.

Main Methods:

• Placebo-controlled clinical trials for treatment efficacy.
• Analysis of genetic polymorphisms.
• Review of updated classification of primary immunodeficiencies.
• Clinical characterization of immune disorders and infections.

Main Results:

• C1 esterase inhibitor concentrate proved safe and effective for hereditary angioedema attacks.
• Toll-like receptor stimulation is crucial for adaptive immune responses.
• Over 15 new genetic defects identified for primary immunodeficiencies, including DOCK8 mutations.
• Expanded understanding of warts, hypogammaglobulinemia, myelokathexis syndrome, and infections in chronic granulomatous disease.
• Recognized frequent gastrointestinal issues in humoral immunodeficiencies.
• Developed a newborn screening program for severe combined immunodeficiency.

Conclusions:

• Advances in 2009 improved understanding of immune system disorders and their management.
• New genetic discoveries and therapeutic trials offer better patient outcomes.
• Early diagnosis through newborn screening significantly reduces mortality for severe combined immunodeficiency.