DC is a genetic disorder that arises from germline mutations in telomerase components, such as dyskerin/DKC1, which lead to impaired telomerase biogenesis and function, and hence causing telomere shortening during early development and several abnormalities including premature aging and bone marrow failure syndromes (Tummala et al., 2024; Vulliamy et al., 2008). The gene discussed is DKC1; the disease is dyskeratosis congenita.