Sexual Dimorphism in Interstitial Lung Disease

Area of Science:

• Pulmonary Medicine
• Immunology
• Genetics

Background:

• Interstitial lung diseases (ILD) are progressive lung disorders causing fibrosis and reduced lung function.
• Idiopathic pulmonary fibrosis (IPF) is the most common ILD, with distinct sex-specific incidence patterns.
• Connective tissue disease-associated ILDs disproportionately affect women.

Purpose of the Study:

• To outline sex-related differences in ILD incidence, progression, and mechanisms.
• To review current cellular and pre-clinical research on sex differences in ILD.
• To highlight gender bias in clinical diagnosis and underrepresentation of women in trials.

Main Methods:

• Review of existing literature on sex differences in ILD.
• Analysis of cellular and pre-clinical studies.
• Examination of clinical diagnosis and trial data.

Main Results:

• Biological sex influences ILD incidence and progression, though mechanisms are unclear.
• Environmental exposures, X-chromosome genes, and sex hormones may contribute to sex disparities.
• Pre-clinical models often neglect sex differences, and clinical settings show gender bias.

Conclusions:

• Sex-based differences in ILD require further investigation.
• Addressing sex disparities in research and clinical practice is essential for effective intervention.
• Increased female participation in clinical trials is needed to advance understanding and treatment.