Does epigenetics play a role in human asthma?

Area of Science:

• Pediatric Allergy and Immunology
• Epigenetics
• Chronic Disease Epidemiology

Background:

• Childhood asthma and allergic diseases are major global health concerns.
• These conditions represent a significant economic burden, exceeding that of other serious diseases.
• The precise pathogenesis and natural history of childhood asthma remain incompletely understood.

Purpose of the Study:

• To review current knowledge on the role of epigenetic processes in asthma pathogenesis.
• To focus on findings from genome-wide, population-based studies.
• To elucidate the contribution of epigenetics to childhood allergic diseases.

Main Methods:

• Systematic review of existing literature.
• Focus on genome-wide association studies (GWAS) and epigenome-wide association studies (EWAS).
• Analysis of population-based cohorts investigating asthma and allergic diseases.

Main Results:

• Epigenetic modifications (DNA methylation, histone modification, non-coding RNAs) are implicated in asthma development.
• Genome-wide studies reveal specific epigenetic loci associated with asthma risk and severity.
• Environmental exposures interact with epigenetic pathways to influence asthma susceptibility.

Conclusions:

• Epigenetic mechanisms are integral to the pathogenesis of childhood asthma.
• Understanding these epigenetic alterations is key to developing novel diagnostic and therapeutic strategies.
• Further population-based, genome-wide research is essential to fully unravel the epigenetic landscape of pediatric allergic diseases.