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October 2, 2025Frontiers in ImmunologyOpen Access

Case report: Spontaneous remission of severe aplastic anemia mediated by mutant hematopoietic stem cells evading T-cell attack

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Authors

KSKohei ShiroshitaYZYoshitaka ZaimokuHKHimari Kudo

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Overview

Case report reveals spontaneous remission in severe aplastic anemia through mutant stem cells evading T-cell destruction, suggesting predictive indicators for enhanced patient management.

Key Points

  • Hematologic recovery occurred within 27 days, indicating a notable reversal of severe aplastic anemia.
  • Key evidence shows that 69% of granulocytes lacked critical HLA haplotypes, pointing to a mechanism of immune evasion.
  • Retrospective analysis indicated most non-lymphoid cells were replaced by mutant stem cells within the bone marrow.
  • Identifying HLA allele-lacking leukocytes early could help predict spontaneous remission, potentially reducing need for intensive treatments.

Cite This Study

Shiroshita et al. (2025) studied this question.

synapsesocial.com/papers/68de6f3183cbc991d0a21f4dhttps://doi.org/10.3389/fimmu.2025.1635943
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