What question did this study set out to answer?

To examine the role of RNA methylation in T cell exhaustion and its impact on tumor control.

April 29, 2026The Journal of Experimental Medicine0 citations

Testing the mettle of RNA methylation in T cell exhaustion

CYCansu YerindeBroad Institute DSDebattama Rai Sen

Key Points

To examine the role of RNA methylation in T cell exhaustion and its impact on tumor control.
Identified Mettl8 as a regulator of progenitor exhausted CD8+ T cells
Analyzed Tcf7 transcript stabilization
Investigated chromatin program shaping
Mettl8 loss promotes effector differentiation
Mettl8 absence enhances tumor control
RNA methylation is critical for T cell fate regulation

Abstract

Song et al. (https://doi.org/10.1084/jem.20250424) identify Mettl8 as a regulator of progenitor exhausted CD8+ T cells, stabilizing Tcf7 transcripts and shaping chromatin programs. Mettl8 loss drives effector differentiation and improves tumor control, underscoring RNA methylation as a key layer of T cell fate regulation.

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Cite This Study

Yerinde et al. (Thu,) studied this question.

synapsesocial.com/papers/69f15432879cb923c4944605 https://doi.org/https://doi.org/10.1084/jem.20260349

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