What type of study is this?

This is a In Vitro Study study.

What question did this study set out to answer?

The study aims to investigate how FLT3/ITD mutations impact CD8+ T cell function in acute myeloid leukemia.

December 8, 2025Blood

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Integrated analysis shows FLT3/ITD mutations drive CD8+ T cell exhaustion and mediates immune evasion via CD276 upregulation.

The study aims to investigate how FLT3/ITD mutations impact CD8+ T cell function in acute myeloid leukemia.
Analyzed CD8+ T-cell landscape using scRNA-seq in AML samples.
Performed flow cytometry to validate CD8+ T cell frequency and exhaustion markers.
Conducted co-culture assays with FLT3/ITD AML cells and CD8+ T cells.
Identified STAT1 as a key regulator of CD276 transcription in FLT3/ITD cells.
Tested pharmacologic inhibitors for their effects on CD276 expression.
FLT3/ITD AML samples showed reduced CD8+ T cells and increased exhaustion markers.
FLT3/ITD enhances CD276 expression, contributing to T cell immunosuppression.
Pharmacologic disruption of FLT3/ITD signaling reduced CD276 levels.
Dual blockade of FLT3 and CD276 restored T-cell cytotoxicity and proliferation.
Combined treatment led to high remission rates in PDX models.

Wang et al. (2025) studied this question.

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