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December 8, 2025BloodOpen Access

Spatial multiomics reveal a critical role for TIM4-expressing macrophages in blast transformation of chronic myelomonocytic leukemia

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Authors

AMAbhishek A. MangaonkarJVJosé C. VillasboasCTChristy E. Trussoni

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Overview

Observational analysis reveals that TIM4-expressing macrophages enhance immune tolerance in chronic myelomonocytic leukemia, implicating the bone marrow microenvironment's role in disease progression.

Key Points

  • TIM4-expressing macrophages create a protective niche for leukemic cells, promoting chronic myelomonocytic leukemia progression.
  • Data shows increased T regulatory cell presence, indicating a shift in immune dynamics during blast transformation.
  • Analysis revealed significant cellular interactions among macrophages, leukemic cells, and monocytes in the bone marrow microenvironment.
  • Study highlights the role of indoleamine 2,3-dioxygenase-1 in modulating immune responses in chronic myelomonocytic leukemia.

Cite This Study

Mangaonkar et al. (2025) studied this question.

synapsesocial.com/papers/69362f4e4fa91c937236d82ehttps://doi.org/10.1182/blood-2025-3831
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  4. 4Spatial transcriptomic analysis of chronic lymphocytic leukemia lymph nodes reveals tumor microenvironment evolution during disease progression2025
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