Which T cells lose chromosome Y most?
Across cancer scRNA-seq and new PBMC/CD4+ data, regulatory T cells showed the highest LOY, higher Treg ratios, and 465 dysregulated genes tied to Treg programs.
Source
Loss of chromosome Y in regulatory T cells
Study at a glance
- Design
- Computational / modelling — scRNA-seq reanalysis + new PBMC/CD4+ datasets comparing LOY across T cell subtypes
- N
- N=55 · 23 PBMC + 32 CD4+ enriched samples in validation dataset (plus public cancer scRNA-seq)
- Population
- T lymphocyte–enriched scRNA-seq from cancer patients and new PBMC/CD4+ samples
- Outcome
- LOY burden by T cell subtype; Treg fraction and gene dysregulation with LOY
Structured fields used in claim comparison tables when every cited study has a complete layer.
What they did
Analyzed public T-enriched cancer scRNA-seq and generated 23 PBMC + 32 CD4+ enriched samples to compare LOY across T subtypes and trajectories.
What they found
Tregs had significantly more LOY than other T subtypes; LOY associated with increased Treg ratio and dysregulation of hundreds of immunosuppressive/developmental genes.
The limits
What it doesn't show
Does not prove LOY in Tregs causes cancer; observational single-cell associations.
Key terms
- LOY
- Mosaic loss of chromosome Y in leukocytes.
- Regulatory T cells (Tregs)
- Immunosuppressive CD4+ subtype most LOY-enriched here.
- scRNA-seq
- Single-cell RNA sequencing used to call cell types and LOY.
- Somatic aneuploidy
- Acquired chromosome copy-number change in some cells.
- PBMC
- Peripheral blood mononuclear cells sampled for validation.
- Immunosuppression
- Treg functions linked to many LOY-dysregulated genes.
Flashcards
Research intelligence for this paper
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Quiz yourself
Highest LOY T subtype:
Common questions
Validation samples?
23 PBMC + 32 CD4+ enriched.
Highest LOY subtype?
Regulatory T cells.
Dysregulated genes in LOY Tregs?
465 genes.
Cancer cohorts used?
Liver, lung, or colorectal cancer public datasets.
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