Modulation of tissue resident memory T cells by glucocorticoids after acute cellular rejection in lung transplantation.

ABSTRACT: Acute cellular rejection is common after lung transplantation and is associated with an increased risk of early chronic rejection. We present combined single-cell RNA and TCR sequencing on recipient-derived T cells obtained from the bronchoalveolar lavage of three lung transplant recipients with rejection and compare them with T cells obtained from the same patients after treatment of rejection with high-dose systemic glucocorticoids. At the time of rejection, we found an oligoclonal expansion of cytotoxic CD8+ T cells that all persisted as tissue resident memory T cells after successful treatment. Persisting CD8+ allograft-resident T cells have reduced gene expression for cytotoxic mediators after therapy with glucocorticoids but accumulate around airways. This clonal expansion is discord

SUBMITTER: Snyder ME 

PROVIDER: S-EPMC8924935 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature