Raw lacquer-associated familial chronic myelomonocytic leukemia with multi-hit TET2 mutations

BackgroundTo explore the potential association between long-term exposure to raw lacquer and the development of chronic myelomonocytic leukemia (CMML).MethodsWe analyzed the clinical and hematological characteristics of an elderly couple with CMML. Whole-exome sequencing (WES) was performed to ident...

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Bibliographic Details
Main Authors: Yang Zhang, Yujiao Luo, Hongling Peng, Yafei Yin, Guangsen Zhang
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-08-01
Series:Frontiers in Oncology
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Online Access:https://www.frontiersin.org/articles/10.3389/fonc.2025.1605369/full
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Summary:BackgroundTo explore the potential association between long-term exposure to raw lacquer and the development of chronic myelomonocytic leukemia (CMML).MethodsWe analyzed the clinical and hematological characteristics of an elderly couple with CMML. Whole-exome sequencing (WES) was performed to identify relevant gene variants, with a focus on TET2 mutation status.ResultsTwo unrelated CMML patients within the same family, both with over 40 years of raw lacquer exposure, developed CMML. WES revealed that both patients harbored multi-hit TET2 gene mutations and lacked ASXL1 mutations. Both demonstrated relative sensitivity to hydroxyurea or hypomethylating agent (HMA) therapy. Unaffected family members lacked significant raw lacquer exposure.ConclusionsLong-term exposure to raw lacquer may be associated with the onset of familial CMML. CMML patients with multi-hit TET2 mutations in the absence of ASXL1 mutations may have a favorable prognosis.
ISSN:2234-943X