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Vaccine-induced ICOS+CD38+ cTfh are sensitive biosensors of age-related changes in inflammatory pathways

ABSTRACT: Vaccine-induced ICOS+CD38+ cTfh are sensitive biosensors of age-related changes in inflammatory pathways

PROVIDER: PRJNA555109 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9698910.fastq.gz	Fastqsanger.gz
	SRR9698910_1.fastq.gz	Fastqsanger.gz
	SRR9698910_2.fastq.gz	Fastqsanger.gz
	SRR9698920.fastq.gz	Fastqsanger.gz
	SRR9698920_1.fastq.gz	Fastqsanger.gz

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Vaccine-induced ICOS+CD38+ cTfh are sensitive biosensors of age-related changes in inflammatory pathways

Project description:Transcriptional pathways associated with aging were studied in circulating T follicular helper CD4 cells before and 7 days after influenza vaccination

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Vaccine-induced ICOS<sup>+</sup>CD38<sup>+</sup> circulating Tfh are sensitive biosensors of age-related changes in inflammatory pathways.

Project description:Humoral immune responses are dysregulated with aging, but the cellular and molecular pathways involved remain incompletely understood. In particular, little is known about the effects of aging on T follicular helper (Tfh) CD4 cells, the key cells that provide help to B cells for effective humoral immunity. We performed transcriptional profiling and cellular analysis on circulating Tfh before and after influenza vaccination in young and elderly adults. First, whole-blood transcriptional profiling shows that ICOS+CD38+ cTfh following vaccination preferentially enriches in gene sets associated with youth versus aging compared to other circulating T cell types. Second, vaccine-induced ICOS+CD38+ cTfh from the elderly had increased the expression of genes associated with inflammation, including tumor necrosis factor-nuclear factor κB (TNF-NF-κB) pathway activation. Finally, vaccine-induced ICOS+CD38+ cTfh display strong enrichment for signatures of underlying age-associated biological changes. These data highlight the ability to use vaccine-induced cTfh as cellular "biosensors" of underlying inflammatory and/or overall immune health.

| S-EPMC8149371 | biostudies-literature

CLL: CD38+CD49d+ vs. CD38-CD49d-

Project description:CD38 and CD49d are associated negative prognosticators in chronic lymphocytic leukemia (CLL). Despite evidence that both molecules are involved in interactions occurring between CLL and normal cells in the context of CLL-involved tissues, a functional link is still missing. Using gene expression profiles comparing CD38+CD49d+ vs. CD38-CD49d- CLL cells, we demonstrated overexpression of the CCL3 and CCL4 chemokines in cells from the former group. These chemokines were also upregulated by CD38 signals in CLL; moreover, CCL3 was expressed by CLL cells from bone marrow biopsies (BMB) of CD38+CD49d+ but not CD38-CD49d- cases. High levels of CCR1 and, to a lesser extent, CCR5, the receptors for CCL3 and CCL4, were found in CLL-derived monocyte-macrophages. Consistently, CCL3 increased monocyte migration, and CD68+ macrophage infiltration was particularly high in BMB from CD38+CD49d+ CLL. Conditioned media from CCL3-stimulated macrophages induced endothelial cells to express VCAM-1, the CD49d ligand, likely through TNFα over-production. These effects were apparent in BMB from CD38+CD49d+CLL, where lymphoid infiltrates were characterized by a prominent meshwork of VCAM-1+ stromal/endothelial cells. Lastly, CD49d engagement by VCAM-1-transfectants increased viability of CD38+CD49d+ CLL cells. Altogether, CD38 and CD49d can be thought of as a part of a consecutive chain of events ultimately leading to improved survival of CLL cells.

2009-03-03 | GSE14560 | GEO

Analysis of CD38+ and CD38- sub-clones derived from the same CLL patient

Project description:CD38 expression is an important prognostic marker in CLL with high levels of CD38 associated with shorter overall survival. In this study, we used gene expression profiling and protein analysis of highly purified cell-sorted CD38+ and CD38- chronic lymphocytic leukemia cells to elucidate a molecular basis for the association between CD38 expression and inferior clinical outcome. Paired CD38+ and CD38- CLL cells derived from the same patient were shown to be monoclonal by VH gene sequencing but despite this, CD38+ CLL cells possessed a distinct gene expression profile when compared with their CD38- sub-clones. Keywords: Sub-clonal analysis of CLL cells derived from the same leukemia sample

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Expression data from native ZAP-70+CD38+ vs. ZAP-70-CD38- CLL cells

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Single cell RNA sequencing analysis of CD8+ T cell subsets following DENV-vaccine administration

Project description:PBMC-derived CD8 T cell activation and gene expression profiles were assessed 14 days following a single dose of a candidate live-attenuated tetravalent denge virus vaccine (DENVax). Three distinct populations of CD8+ T cells were isolated by flow cytometric sorting: 1) CD3+ CD8+ CD38- HLA-DR- T cells, 2) CD3+ CD8+ CD38+ HLA-DR+ T cells, and 3) CD3+ CD8+ CD71+ HLA-DR+ T cells

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Project description:Gene expression profiles of CD34+CD38- stem cells and more differentiated CD34+CD38+ progenitor cells were compared. Comparison of expression profiles of hematopoietic stem cells from fetal liver, umbilical cord blood, bone marrow and mobilized pheripheral blood allowed us to identify a unique set of genes with conserved expression during ontogeny. Experiment Overall Design: CD34+CD38- en CD34+CD38+ cell populations were isolated by cell sorting from human Bone Marrow, mobilized peripheral blood, umbilical cord blood and fetal liver. Total RNA was isolated from each cell population followed by the synthesis of biotinylated cRNA. After fragmentation the biotinylated cRNA was hybridized to affymetrix U133A chips.

2008-10-25 | E-GEOD-6146 | biostudies-arrayexpress

Transcription profiling of CD38+ and CD38- cells derived from the same CLL patient reveals distinct gene expression signatures despite their monoclonal origin.

Project description:CD38 expression is an important prognostic marker in CLL with high levels of CD38 associated with shorter overall survival. In this study, we used gene expression profiling and protein analysis of highly purified cell-sorted CD38+ and CD38- chronic lymphocytic leukemia cells to elucidate a molecular basis for the association between CD38 expression and inferior clinical outcome. Paired CD38+ and CD38- CLL cells derived from the same patient were shown to be monoclonal by VH gene sequencing but despite this, CD38+ CLL cells possessed a distinct gene expression profile when compared with their CD38- sub-clones. Experiment Overall Design: These experiments compared the gene expression profile of CD38+ and CD38- sub-clones derived from 6 individual CLL patients.

2007-11-11 | E-GEOD-6321 | biostudies-arrayexpress

Transcription profiling of CD34+CD38- vs CD34+CD38+ fractions of human umbilical cord blood and comparison of slow-dividing fraction vs the fast dividing fraction of CD34+/CD38- population

Project description:Comparison of the CD34+CD38- versus CD34+CD38+ fractions of human umbilical cord blood and comparison of the slow-dividing fraction versus the fast dividing fraction of the CD34+/CD38- population.

2005-09-08 | E-EMBL-1 | biostudies-arrayexpress

Transcription profiling of human ZAP-70+CD38+ and ZAP-70-CD38- B-cells from chronic lymphocytic leukemia patients

Project description:B-cell chronic lymphocytic leukemia (B-CLL) is a heterogenous disease with a highly variable clinical course and analysis of ZAP-70 and CD38 expression on B-CLL cells allowed for identification of patients with good (ZAP-70-CD38-), intermediate (discordant expression of ZAP-70 and CD38) and poor (ZAP-70+CD38+) prognosis. In an attempt to identify a molecular basis that may underly this diverse clinical behaviour DNA microarray technology was employed to compare eight ZAP-70+CD38+ with eight ZAP-70-CD38- B-CLL cases. We used microarrays to detail the global programme of gene expression distinguising B-CLL from patient with good (samples 1 to 8) and poor prognosis (sample 9 to 16) and identified distinct classes of up- and down-regulated genes. Experiment Overall Design: To compare the transcriptosomes of good prognosis CLL cases (ZAP-70-CD38-) to poor prognosis cases (ZAP-70+CD38+), we purified CD19+ cells from peripheral blood samples by immunomagnetic isolation using MidiMacs, resulting in >95% purity of leukemic cells as detected by FACS analysis of CD19+CD5+ cells. The leukemic cells were freshly purified from untreated patients and RNA was directly isolated from fresh cells without further ex vivo treatment of the cells. Eight immunomagnetically purified peripheral blood derived ZAP-70+CD38+ CLL cases were compared with eight ZAP-70-CD38- B-CLL cases.

2009-04-23 | E-GEOD-4392 | biostudies-arrayexpress

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