Novel Germline POT1 Variant Predisposes to Childhood Acute Myeloid Leukemia
Blood(2021)
Abstract
Introduction: Current studies indicate a contribution of germline predisposition in the development of approximately 8.5% of childhood cancers (Zhang J. et al., N Engl J Med, 2015), although their apparent rate is estimated to be much higher. Understanding tumor evolution based on a predisposed cell can open unknown doors for prevention and therapy of childhood cancer e.g., leukemia. Here we present a novel rare (MAF<0.1%) germline POT1 variant (Q199*) predisposing to acute myeloid leukemia (AML). POT1 as part of the telomeric shelterin complex is known to play an important role in DNA damage protection, telomere length maintenance and chromosomal stability (Calvete O. et al., Nat. Commun., 2015). POT1 variants are associated with a broad range of cancer, including myeloid and lymphoid neoplasms in adults (Lim T.L. et al., Leukemia, 2021), but not yet described for myeloid malignancies in childhood.
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Key words
acute myeloid leukemia
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