What does this research mean for the field?

Intratumoral regulatory T cells share a conserved 88-gene signature across multiple epithelial cancers, and the protumoral CCR8+ effector Treg subset is clonally related to Tregs in tumor-draining lymph nodes and conventional T cells rather than other intratumoral Treg subsets. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To identify conserved transcriptional profiles, phenotypic subsets, and clonal origins of intratumoral effector regulatory T cells across diverse human epithelial cancers.

August 23, 2026Nature CommunicationsOpen Access

Molecular heterogeneity and clonal origin of CCR8+ effector regulatory T cells in human cancer

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Authors

JSJulian SwatlerInstytut Biologii Doświadczalnej im. Marcelego Nenckiego SPSimone PuccioNational Research Council EVEmanuele VoulazHumanitas University

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Implication

Single-cell analysis reveals a conserved 88-gene signature and lymph node origins of effector regulatory T cells across nine human epithelial cancers, highlighting precise immunotherapeutic targets.

Key Points

To identify conserved transcriptional profiles, phenotypic subsets, and clonal origins of intratumoral effector regulatory T cells across diverse human epithelial cancers.
Integrated single-cell RNA-sequencing datasets with spectral flow cytometry to profile intratumoral regulatory T cells across 9 human epithelial cancer types.
Conducted single-cell T cell receptor sequencing to map clonal trajectories across regulatory T cell subsets, tumor-draining lymph nodes, and intratumoral conventional T cells.
Identified a core signature of 88 genes consistently upregulated in intratumoral regulatory T cells across all 9 cancer types.
Characterized 4 distinct regulatory T cell subsets: CCR7+ quiescent, CCR8+ effector, CD161+, and intermediate cells, each with unique tissue localization and drivers.
Demonstrated that protumoral CCR8+ effector regulatory T cells share clonal origins with regulatory T cells in tumor-draining lymph nodes and conventional T cells, but not with other intratumoral regulatory T cell subsets.

Cite This Study

Swatler et al. (2026) studied this question.

synapsesocial.com/papers/6a8aae407677a3411444731b https://doi.org/10.1038/s41467-026-76670-6

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Implication

Single-cell analysis reveals a conserved 88-gene signature and lymph node origins of effector regulatory T cells across nine human epithelial cancers, highlighting precise immunotherapeutic targets.

Molecular heterogeneity and clonal origin of CCR8+ effector regulatory T cells in human cancer

Discussion

Member takes

Implication

Key Points

Cite This Study

Molecular heterogeneity and clonal origin of CCR8+ effector regulatory T cells in human cancer

Discussion

Member takes

Implication

Key Points

Cite This Study

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