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Tuft cells and fibroblasts promote thymus regeneration through activation of a type-2 immune response [TEC_after_rAREG_inj]

ABSTRACT: The goal of this study was to determine how thymic epithelial cells (TEC) differentiation and gene expression is affected by amphiregulin (AREG), which is produced by ILC2 upon thymic involution and the receptor for which is expressed by early TEC subsets. For this purpose we treated WT mice with recombinant AREG, sorted TEC from their thymi 10 days after treatment when the thymus is recovering and AREG has been released, and performed bulk RNA-Seq.

ORGANISM(S): Mus musculus

PROVIDER: GSE244225 | GEO | 2024/01/11

REPOSITORIES: GEO

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Tuft cells and fibroblasts promote thymus regeneration through activation of a type-2 immune response [ILC2_after_irr]

Project description:The goal of this study was to understand the role of thymic innate lymphoid cells (ILC2) in thymic regeneration following irradiation-induced acute involution, and determine whether this is activated by the alarmin IL-25. For this purpose we treated WT or Il25 KO mice with sublethal irradiation and/or recombinant IL-25, sorted ILC2 cells from their thymi 3 days after treatment when the thymus begins its recovery, and performed bulk RNA Seq.

2024-01-11 | GSE244202 | GEO

Tuft cells and fibroblasts promote thymus regeneration through activation of a type-2 immune response [ILC2_after_Dex]

Project description:The goal of this study was to understand the role of thymic innate lymphoid cells (ILC2) in thymic regeneration following dexamethasone-induced acute involution, and determine whether this is activated by the alarmins IL-25 and IL-33. For this purpose we treated WT, Il25 KO or Il33 mice with dexamethasone, sorted ILC2 cells from their thymi 3 days after treatment when the thymus begins its recovery, or at an earlier time point (18 hours) for comparison, and performed bulk RNA-Seq.

2024-01-11 | GSE244216 | GEO

Tuft cells and fibroblasts promote thymus regeneration through activation of a type-2 immune response [Tuft_after_Dex]

Project description:The goal of this study was to understand the role of thymic tuft cells in thymic regeneration following dexamethasone-induced acute involution, and determine whether this is affected by IL-13, which is produced by ILC2 upon involution and the receptor for which is expressed by tuft cells. For this purpose we treated WT and Il13ra1 KO mice with dexamethasone, sorted tuft cells from their thymi 3 days after treatment when the thymus begins its recovery, at an earlier time point (18 hours) for comparison, or at a later time point (6d) when IL-13 has been released, and performed bulk RNA Seq.

2024-01-11 | GSE244220 | GEO

Tuft cells and fibroblasts promote thymus regeneration through activation of a type-2 immune response [ex_vivo_ILC2]

Project description:The goal of this study was to determine whether thymic innate lymphoid cells type-2 (ILC2) activation during acute thymic involution is mediated by the alarmins IL-25 and IL-33. For this purpose we sorted thymic ILC2 from WT mice, treated them ex vivo with recombinant IL-25/IL-33 or both for 24 hours, and performed bulk RNA Seq.

2024-01-11 | GSE244222 | GEO

Tuft cells and fibroblasts promote thymus regeneration through activation of a type-2 immune response [ex_vivo_tuft]

Project description:The goal of this study was to determine whether thymic tuft cells activation during acute thymic involution is mediated by IL-13, which is produced by ILC2 upon involution and the receptor for which is expressed by tuft cells. For this purpose we sorted thymic tuft cells from WT mice, treated them ex vivo with recombinant IL-13 for 24 hours, and performed bulk RNA-Seq.

2024-01-11 | GSE244223 | GEO

Tuft cells and fibroblasts promote thymus regeneration through activation of a type-2 immune response [Tuft_after_irr]

Project description:The goal of this study was to understand the role of thymic tuft cells in thymic regeneration following irradiation-induced acute involution. For this purpose we treated WT mice with sublethal irradiation, sorted tuft cells from their thymi 3 days after treatment when the thymus begins its recovery, and performed bulk RNA Seq.

2024-01-11 | GSE244219 | GEO

Tuft cells and fibroblasts promote thymus regeneration through activation of a type-2 immune response [NKT_after_Dex]

Project description:The goal of this study was to understand the role of thymic natural killer T cells (NKT) in thymic regeneration following dexamethasone-induced acute involution. For this purpose we treated WT mice with dexamethasone, sorted NKT from their thymi 3 days after treatment when the thymus begins its recovery, or at an earlier time point (18 hours) for comparison, and performed bulk RNA Seq.

2024-01-11 | GSE244221 | GEO

Tuft cells and fibroblasts promote thymus regeneration through activation of a type-2 immune response [Fibroblasts_after_Dex]

Project description:The goal of this study was to understand the role of fibroblasts in thymic regeneration following dexamethasone-induced acute involution. For this purpose we treated WT mice with dexamethasone, sorted fibroblasts from their thymi 4 days after treatment when the thymus begins its recovery, or at an earlier time point (18 hours) for comparison, and performed bulk RNA Seq.

2024-01-11 | GSE244218 | GEO

Tuft cells and fibroblasts promote thymus regeneration through activation of a type-2 immune response [Fibroblasts_after_irr]

Project description:The goal of this study was to understand the role of fibroblasts in thymic regeneration following irradiation-induced acute involution. For this purpose we treated WT mice with sublethal irradiation, sorted fibroblasts from their thymi 3 days after treatment when the thymus begins its recovery, or at an earlier time point (1 day) for comparison, and performed bulk RNA Seq.

2024-01-11 | GSE244217 | GEO

Next-generation sequencing of cTEC and mTEC isolated from non-pregnant and pregnant females lacking the expression of Klf4 (KO) or not (LOX)

Project description:Stress-induced thymic involution is defined by profound damage to thymic epithelial cells (TECs), resulting in an acute and transient reduction of thymopoietic capacity. During pregnancy, thymic involution is not associated with TEC loss but rather with TEC quality modifications. Study of the mechanisms of TEC maintenance during pregnancy may be of critical importance for identifying new players for thymic regeneration in other models of thymic involution. We report a strong enrichment for motifs recognized by KLF4 based on genes differentially expressed in TECs of pregnant females. Therefore, we studied the impact of Klf4 deletion in TECs during pregnancy by analyzing thymus composition and TEC transcriptome. Conditional Klf4 deletion in homeostatic conditions does not injure thymic integrity. However, pregnant females lacking Klf4 show a disrupted thymus with substantial loss of thymic epithelial cells. Klf4 maintains cTEC number during pregnancy by maintaining cell survival and inhibiting the transition to a mesenchymal state. Our study reveals Klf4 as a protective factor for TECs during pregnancy-associated thymic involution and represents a potential study subject for other models of stress-induced thymic involution.

2022-09-30 | GSE210885 | GEO

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