Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

CCR8 expression on regulatory T cells reveals trajectories of tissue adaptation and protects against myocardial infarction [bulk RNA-seq]

ABSTRACT: We employed single-cell RNA sequencing (scRNA-seq) in a mouse model of MI to gain a detailed analysis of heart and lymphoid Tregs, focusing on their developmental trajectories. Bulk RNA sequencing was used to further characterize the phenotype of CC motif chemokine receptor 8 positive (CCR8+) Tregs in the heart and lymph nodes. scRNA-seq of murine Tregs from the mediastinal lymph node (mLN) and heart after MI identified three Treg populations, one of which was mainly derived from the heart.

ORGANISM(S): Mus musculus

PROVIDER: GSE291962 | GEO | 2026/07/21

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

CCR8 expression on regulatory T cells reveals trajectories of tissue adaptation and protects against myocardial infarction [scRNA-seq]

Project description:We employed single-cell RNA sequencing (scRNA-seq) in a mouse model of MI to gain a detailed analysis of heart and lymphoid Tregs, focusing on their developmental trajectories. Bulk RNA sequencing was used to further characterize the phenotype of CC motif chemokine receptor 8 positive (CCR8+) Tregs in the heart and lymph nodes. scRNA-seq of murine Tregs from the mediastinal lymph node (mLN) and heart after MI identified three Treg populations, one of which was mainly derived from the heart.

2026-07-21 | GSE291963 | GEO

Transcriptomic profile of recovered exogenous Tregs from injured bone, muscle, and skin of mice that were locally treated with Tregs, as well as heart, MLN and spleen from mice with MI that were systemically treated with Tregs.

Project description:Transcriptomic profile of recovered exogenous Tregs from injured bone, muscle, and skin of mice that were locally treated with Tregs, as well as heart, mediastinal lymph nodes (MLN) and spleen from mice with myocardial infarcts (MI) that were systemically treated with Tregs. Mice with tissue injuries were treated with exogenous Tregs that were sorted from spleens of Foxp3(IRES-mRFP) mice - C57BL6/J mice with bone, muscle and skin injuries were treated via hydrogel-mediated local delivery of Tregs soon after injury, while mice with myocardial infarcts (MI) were treated with systemic (intravenous) delivery of Tregs one day post-MI. Three days after Treg-delivery, the injured bone, muscle, and skin tissues, as well as heart, mediastinal lymph nodes and spleens from mice with MI were harvested, and the exogenous (delivered) Tregs were recovered by FACS sorting. These sorted exogenous Tregs recovered at day 3 post-Treg delivery (Day 3 recovered Tregs) were then used for mini-bulk RNA sequencing along with spleen Tregs before delivery as a control (Day 0 Spleen Tregs).

2024-05-31 | GSE230177 | GEO

Myocardial infarction (MI) primes autoreactive T cells through activation of dendritic cells

Project description:DC subsets of the murine healthy heart consisted of IRF8-dependent conventional (c)DC1, IRF4-dependent cDC2 and monocyte-derived DCs. In steady state, cardiac self-antigen α-myosin was presented in heart-draining mediastinal lymph node (mLN) by cDC1s, driving the proliferation of antigen-specific CD4+ TCR-M T cells, and their differentiation into Tregs. Following MI, all DC subsets infiltrated the heart, while only cDCs migrated to the mLN. Here, cDC2s induced TCR-M proliferation and differentiation into IL-17/IFNγ producing effector cells. Thus, cardiac specific autoreactive T cells get activated by mature DCs following myocardial infarction.

2017-03-15 | GSE94949 | GEO

CCR8+ decidual regulatory T cells maintain maternal-fetal immune tolerance during early pregnancy

Project description:Regulatory T cells (Tregs) play crucial roles in maintaining maternal immune tolerance to the semi-allogeneic fetus during pregnancy, but Treg population heterogeneity and tissue-specific functions in human decidua remain largely unknown. Here, we conducted single-cell transcriptomic and T cell receptor sequencing of CD4+ T cells from first-trimester decidua and matched peripheral blood of pregnant women. These analyses identified a highly activated, immunosuppressive CCR8+ Treg subset specifically enriched in decidua (dTregs). CCR8+ dTregs are decreased in recurrent pregnancy loss (RPL) patients and abortion-prone model mice. Depletion of this subset with anti-CCR8 antibodies alters the decidual immune profile, increasing susceptibility to fetal loss. The CCR8 ligand, CCL1, is mainly produced by decidual CD49a+ NK cells and is also significantly decreased in RPL patients. By characterizing the landscape of dTregs in human early pregnancy, we identified CCR8+ dTregs as crucial for maintaining maternal-fetal tolerance, suggesting new potential strategies for RPL diagnosis and therapy.

2025-04-15 | GSE252187 | GEO

CCR8 expression defines tissue-resident memory T cells in human skin

Project description:Human skin harbors two major T cell compartments of equal size that are distinguished by expression of the chemokine receptor CCR8. In vitro studies have demonstrated that CCR8 expression is under strict control of T cell antigen receptor (TCR)-engagement and the skin tissue microenvironment. We here examined the relationship between CCR8+ and CCR8− T cells. Phenotypic, functional, and transcriptomic analyses revealed that CCR8+ skin T cells bear all the hallmarks of resident memory T (TRM) cells, including homeostatic proliferation in response to IL-7 and IL-15, surface expression of tissue-localization (CD103) and -retention (CD69) markers, low levels of inhibitory receptors (PD-1, Tim-3, LAG-3), and a lack of senescence markers (CD57, KLRG1). In contrast, CCR8− skin T cells are heterogeneous and comprise variable numbers of exhausted (PD-1+), senescent (CD57+, KLRG1+), and effector (T-bethi, Eomeshi) T cells. Importantly, conventional and high-throughput analyses of expressed T cell receptor beta-chain (TRB) gene rearrangement sequences showed that the two skin memory T cell compartments distinguished by CCR8 expression are clonotypically distinct, suggesting that they are produced in response to separate antigenic challenges and distinct stimulatory conditions. Moreover, the phenotypic profiles of these populations were stable in vitro and the presence of similar levels of telomere erosion excludes the possibility of a linear differentiation pathway. In conclusion, CCR8 marks skin-specific, long-lived memory T cells. Therefore, we propose that CCR8+ T cells should be targeted in future skin vaccination research.

2017-12-11 | E-MTAB-6370 | biostudies-arrayexpress

Enhanced Levels of MYHCA peptides in Mediastinal Lymph Nodes Following Myocardial Infarction

Project description:A total of 14 lymph node samples were collected from 7 mice, with 8 samples obtained from the MI group and 6 from the sham-operated group. Each mouse contributed two lymph node samples: the mediastinal lymph node, MedLN and the sub-iliac lymph node, siLN. Supplementary Table 1 provides a detailed breakdown of sample distribution across the experimental groups.

2025-06-18 | MSV000098260 | MassIVE

Enhanced Levels of MYHCA peptides in Mediastinal Lymph Nodes Following Myocardial Infarction

2025-06-16 | MSV000098224 | MassIVE

Fluorescence tracking Treg movement identifies anti-CCR8 and radiation as a therapeutic combination

Project description:Using 10X Genomics single-cell RNA sequencing, we investigated the migration of regulatory T cells (Tregs) following radiation therapy (RT). Employing the Kaede photoconvertible mouse model, we tracked Tregs migrating from the tumor-draining lymph node (TdLN) to the tumor within the post-RT tumor microenvironment. This study serves to identify how RT influences the migrating Treg phenotypes change within the tumor in order to better inform and improve thearaputic strategies for targeting Tregs in combination with RT.

2025-12-08 | GSE296291 | GEO

Single cell RNA-seq analysis of the LLC-OVA tumor-infiltrating T-cell compartment.

Project description:Modulation and depletion of regulatory T cells (Tregs) constitute valid approaches in antitumor immunotherapy but suffer from severe adverse effects due to their lack of selectivity for the tumor-infiltrating (ti-)Treg population. We here employed single-cell RNA-sequencing to discern two ti-Treg populations, one of which is characterized by the unique expression of Ccr8 in conjunction with Treg activation markers. Ccr8 is also expressed by dysfunctional CD4+ and CD8+ T cells, but the CCR8 protein was only prominent on the highly activated and strongly T-cell suppressive ti-Treg subpopulation of mouse and human tumors, with no major CCR8-positivity found on peripheral Tregs. CCR8 expression resulted from TCR-mediated Treg triggering in an NF-kB-dependent fashion, but was not essential for the recruitment, activation nor suppressive capacity of these cells. We generated two CCR8-specific nanobodies (Nbs) that recognize distinct epitopes on the CCR8 extracellular domain. These Nbs were formulated as tetravalent Nb-Fc fusion proteins for optimal CCR8 binding and blocking, containing either an ADCC-deficient or an ADCC-prone Fc region. While treatment of tumor-bearing mice with a blocking ADCC-deficient Nb-Fc did not influence tumor growth, ADCC-prone Nb-Fc elicited antitumor immunity and reduced tumor growth in synergy with anti-PD-1 therapy. Importantly, ADCC-prone Nb-Fc specifically depleted ti-Tregs without affecting peripheral Tregs. Collectively, our findings highlight the efficacy and safety of targeting CCR8 for the depletion of tumor-promoting ti-Tregs in combination with anti-PD-1 therapy.

2021-02-16 | GSE162621 | GEO

scRNA-seq of allo-reactive CD4+ T cells

Project description:Acute graft versus host disease is a serious condition caused by allo-reactive donor CD4+ T cells from allogenic hematopoietic stem cell transplantation. To understand the developmental relationships between T-helper states in mesenteric lymph nodes (mLN), TCR transgenic CD4+ T cells specific for a single allo-peptide (TEa cells) from mice were recovered at Days 0, 1, 2, 3, and 4 from mLN, and Day 5 from the gut and underwent processing to generate scRNA-seq dataset. TEa cells were also recovered at Day 5 from mLN and were either treated with and without IEL-isolation pre-digestion buffer as controls.

2020-06-06 | E-MTAB-9125 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data