Related Experiment Video
Updated: Jan 5, 2026
High-speed Video Microscopy Analysis for First-line Diagnosis of Primary Ciliary Dyskinesia
Published on: January 19, 2022
Primary ciliary dyskinesia in the genomics age
Jane S Lucas1, Stephanie D Davis2, Heymut Omran3
1Primary Ciliary Dyskinesia Centre, NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK; University of Southampton Faculty of Medicine, Academic Unit of Clinical and Experimental Medicine, Southampton, UK.
Insights
Primary ciliary dyskinesia (PCD) is a genetic disorder affecting cilia function, leading to respiratory issues and infertility. Advances in genomics improve diagnosis, identifying genetic causes in 70% of patients, but effective treatments remain limited.
Area of Science:
- Genetics and Molecular Medicine
- Respiratory Medicine
- Cell Biology
Background:
- Primary ciliary dyskinesia (PCD) is a heterogeneous genetic disorder characterized by impaired motile cilia function.
- This dysfunction leads to defective mucociliary clearance, resulting in chronic respiratory symptoms and other health issues.
- Despite recent advances in understanding genetics and disease mechanisms, effective treatments for PCD are scarce.
Purpose of the Study:
- To summarize the current understanding of primary ciliary dyskinesia, focusing on genetic heterogeneity and diagnostic advancements.
- To highlight the challenges in developing effective treatments for PCD.
- To discuss the impact of genomic research on diagnosing and understanding PCD phenotypes.
Main Methods:
- Review of recent literature on primary ciliary dyskinesia genetics and clinical presentation.
- Analysis of advancements in next-generation sequencing for gene discovery in PCD.
- Discussion of emerging diagnostic approaches and potential therapeutic strategies.
Main Results:
- Over 40 genes are now known to cause PCD, with ongoing discovery of new genes.
- Genomic and molecular medicine developments have significantly improved diagnostic capabilities, identifying genetic causes in approximately 70% of diagnosed patients.
- New insights into cilia gene function are refining the understanding of PCD's clinical spectrum, including milder phenotypes.
Conclusions:
- Primary ciliary dyskinesia is a complex genetic disorder with significant diagnostic progress due to genomics.
- While genetic diagnosis is improving, there is a critical need for evidence-based treatments.
- Research is exploring novel and personalized therapies, though gene therapy is not an immediate prospect.
Abstract:
Primary ciliary dyskinesia is a genetically and clinically heterogeneous syndrome. Impaired function of motile cilia causes failure of mucociliary clearance. Patients typically present with neonatal respiratory distress of unknown cause and then continue to have a daily wet cough, recurrent chest infections, perennial rhinosinusitis, otitis media with effusion, and bronchiectasis. Approximately 50% of patients have situs inversus, and infertility is common. While understanding of the underlying genetics and disease mechanisms have substantially advanced in recent years, there remains a paucity of evidence for treatment. Next-generation sequencing has increased gene discovery, and mutations in more than 40 genes have been reported to cause primary ciliary dyskinesia, with many other genes likely to be discovered. Increased knowledge of cilia genes is challenging perceptions of the clinical phenotype, as some genes reported in the last 5 years are associated with mild respiratory disease. Developments in genomics and molecular medicine are rapidly improving diagnosis, and a genetic cause can be identified in approximately 70% of patients known to have primary ciliary dyskinesia. Groups are now investigating novel and personalised treatments, although gene therapies are unlikely to be available in the near future.
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