This article by the Mailleux/Crestani team focuses on adult patients carrying mutations in the DKC1 gene, a gene important for cell stability and telomere maintenance. The authors show that these mutations may be associated with severe interstitial lung disease, which is often diagnosed at a relatively early stage and generally has a poor prognosis.
The key point is that the disease does not only affect the lungs. Patients often also show visible signs on their skin, nails, hair, mouth or teeth, which can help to raise suspicion of the diagnosis at an earlier stage. In the study, several patients also had abnormalities in their blood, suggesting that the condition may be more widespread than a simple lung disease.
In practice, the article highlights the importance of considering a genetic cause in adult patients with pulmonary fibrosis, particularly when it is accompanied by ‘extrapulmonary’ signs such as premature greying of the hair, brittle nails or pigmentation abnormalities.
The main message is therefore as follows: mutations in DKC1 can cause severe pulmonary fibrosis in adults, with a poor prognosis, and certain clinical signs may help to identify it at an earlier stage.