Type 1 diabetes

Single‐cell transcriptional profiling reveals cellular senescence and inflammatory persistence as key features of type 1 diabetes partial remission

Diabetes Obes MetabPublished Mechanistic study

Authors' conclusion

These findings reveal previously unrecognized features of immune dysregulation during PR and provide potential therapeutic targets for T1D treatment.

Study context

Population
Healthy controls, newly diagnosed T1D patients and T1D patients in partial remission; peripheral blood mononuclear cells
Comparison
Healthy controls vs newly diagnosed T1D vs T1D in partial remission
Outcome
Monocyte heterogeneity and stage-specific alterations
Methodological detailssingle-cell RNA sequencing of PBMCs
  • Single-cell RNA sequencing of PBMCs

Main finding

As reported in the abstract

  • Five distinct monocyte subsets with unique molecular signatures and stage-specific alterations
  • Partial remission (PR): persistent inflammatory responses, with expansion of IL1B+ monocytes and sustained activation of TNF and IL6-STAT3 signalling
  • PR: significant reduction of HDAC9+ populations
  • PR: marked accumulation of senescent cells across monocyte subsets (elevated senescence-associated secretory phenotype scores, increased P21 expression)
  • PR: altered developmental dynamics on trajectory analysis, with distinct classical and non-classical monocyte branches
  • Sustained activation of EGR1 and NFκB signalling throughout disease progression, particularly during PR

Original publication

Single‐cell transcriptional profiling reveals cellular senescence and inflammatory persistence as key features of type 1 diabetes partial remission. Diabetes Obes Metab. Published 4 April 2025. doi:10.1111/dom.16384

Composed by AI from the published abstract and checked against it. How Briefs are made →

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