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An aging-like phenotype occurs in Tif1γ-/- hematopoietic stem cells

ABSTRACT: To determine whether an accelerated aging-like phenotype occurs in hematopoiesis of young Tif1γ-/- mice (4 months old), we purified 200,000 hematopoietic stem cells (LSK: Lineage negative, Sca1+, c-Kit+) from Tif1γ-/- mice and performed high-throughput mRNA sequencing (RNA-seq). We compared this transcriptome to physiological aging by creating two other RNAseq libraries from young (4 months old) and old (20 months old) wild type mice.

ORGANISM(S): Mus musculus

PROVIDER: GSE57396 | GEO | 2014/06/16

SECONDARY ACCESSION(S): PRJNA246388

REPOSITORIES: GEO

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An aging-like phenotype occurs in Tif1γ-/- hematopoietic stem cells

Project description:To determine whether an accelerated aging-like phenotype occurs in hematopoiesis of young Tif1γ-/- mice (4 months old), we purified 200,000 hematopoietic stem cells (LSK: Lineage negative, Sca1+, c-Kit+) from Tif1γ-/- mice and performed high-throughput mRNA sequencing (RNA-seq). We compared this transcriptome to physiological aging by creating two other RNAseq libraries from young (4 months old) and old (20 months old) wild type mice. RNAseq study on young Tif1γ-/- mice (4 months old), young wild type mice (4 months old) and old wild type mice (20 months old).

2014-06-16 | E-GEOD-57396 | biostudies-arrayexpress

Young and old HSCs from WT and Lnk-/- mice

Project description:The adaptor protein Lnk is an important negative regulator of HSC homeostasis and self-renewal. This study aims to investigate the role of Lnk in HSC aging. Here we performed expression profiling of bone marrow CD150+CD48-LSK LT-HSCs from young and old WT and Lnk-/- mice. Results identify select Lnk-mediated pathways with potential involvement in HSC self-renewal and aging. CD150+CD48-LSK HSCs were double sorted from WT and Lnk-/- mice at both young and old ages (2 months and 20 months, respectively). RNA was isolated using miRNeasy kit from QIAGEN and processed using the NuGEN Pico kit. The microarray analysis was performed at the Penn Molecular Profiling/Genomics Facility using GeneChip Mouse Gene 1.0ST array (Affymetrix).

2012-10-03 | E-GEOD-39553 | biostudies-arrayexpress

Gene expression analysis of Cbfb-deficient LSK and GMP

Project description:Runx/Cbfb heterodimers play important roles in the development of hematopoietic cells in mouse embryos and adults. In order to identify genes that are regulated by Runx/Cbfb, we purified Lin– c-kit+ Sca1+ (LSK) cells and Lin– c-kit+ Sca1– CD16/32+ (GMP) cells from Vav1-iCre x Cbfb(F/F) and Vav1-iCre x Cbfb(F/+) mice and profiled gene expression using microarray. 200,000 LSK and GMP cells were purified separately from two 7 week old Vav1-iCre x Cbfb(F/F) mice and two Vav1-iCre x Cbfb(F/+) mice by cell sorting. The purity was higher than 98%. Total RNA was extracted using the NucleoSpin RNA XS kit (Macherey-Nagel), amplified using a PicoSL RNA amplification kit (Nugen) and biotinylated with Encore biotin module (Nugen). Labeled RNA was hybridized to Mouse Gene 1.0ST microarrays (Affymetrix) according to the manufacturer’s instruction.

2014-04-05 | E-GEOD-55227 | biostudies-arrayexpress

Single cell RNA_Seq in aging of hematopoietic stem and progenitor cells

Project description:Here, we use single-cell RNA-Seq to examine variation between individual hematopoietic stem and progenitor cells from two mouse strains (C57BL/6 and DBA/2) as they age. We prepared libraries from long-term (LT-HSCs) (LSK CD150+CD48-), short-term hematopoietic stem cells (ST-HSCs) (LSK CD150-CD48-) and multipotent progenitors (MPPs) (LSK CD150+CD48+) from young (2-3 months) and old mice (22 months for C57BL/6 and 20 months for DBA/2). Population controls for each cell type and age were isolated by sorting processed in parallel.

2015-09-30 | GSE59114 | GEO

Age-mediated transcriptomic changes in adult mouse substantia nigra

Project description:Substantia nigra pars compacta (SNpc) is highly sensitive to normal aging and selectively degenerates in Parkinson's disease. Until now, molecular mechanisms behind SNpc aging have not been fully investigated using high throughput techniques. Here, aging-associated early changes in transcriptome of SNpc were investigated comparing late middle-aged (18 months old) to young (2 months old) mice. Three age groups of C57 wild type mice were used in microarray analysis: young (2 months old), middle aged (10 months old), and late-middle aged (18 months old) mice. Four replicates were included in each age group and each replicate was pooled from 4 mice (4 mice/replicate x 4 replicates x 3 age groups). Total RNA was isolated from SNpc for hybridization on Affymetrix microarrays.

2013-05-29 | E-GEOD-45043 | biostudies-arrayexpress

Geriatric muscle stem cells switch reversible quiescence into senescence (Set 2; Old/Geriatric vs. Young and SAMR1 vs. SAMP8)

Project description:Regeneration of skeletal muscle depends on a population of adult stem cells (satellite cells) that remain quiescent throughout life. Satellite cell regenerative functions decline with aging and in progeric conditions. Here we report that geriatric satellite cells, compared to old cells, are incapable of maintaining their normal quiescent state in muscle homeostatic conditions, and this irreversibly affects their intrinsic regenerative and self-renewal capacities. We analyzed the global changes in gene expression occurring within muscle stem cells (satellite cells) in homeostatic conditions during physiological aging and progeria. Pure satellite cell populations from dissociated skeletal muscle from Young (2-3 months), Old (22-24 months), Geriatric (28-30 months), SAMR1 and SAMP8 mice were isolated using a well-established flow cytometry protocol gating on integrin a7(+)/CD34(+) (positive selection) and Lin- (CD31, CD45, CD11b, Sca1) (negative selection).

2013-12-31 | E-GEOD-53725 | biostudies-arrayexpress

Multi-Omics Analyses Revealed Conserved Aging Signatures in Mice

Project description:Studies on aging have largely included one or two OMICS layers, which may not necessarily reflect the signatures of other layers. Moreover, most aging studies have often compared very young (4-5 wks) mice with old (24 months) mice which does not reflect the aging transition after the attainment of adulthood. Therefore, we aimed to study and compared muti-OMICS aging signatures across key metabolic tissues of mature adults (6 months) and old (24 months) C57BL/6J mice (the most commonly used mouse strain). Here we compared the differentially regulated genes and enriched pathways for transcriptome, proteome and epigenome (H3K27ac, H3K4me3, H3K27me3, DNA methylation) across liver, heart, and quadriceps muscle. The major aging associated pathways cross multiple layers and tissues are decreased RNA metabolism, transcription, and translation at transcript and protein levels however increased potential of transcription at DNA methylation and H3K27ac levels.

2021-11-30 | PXD011142 | Pride

Age-mediated transcriptomic changes in adult mouse brain ventral tegmental area

Project description:Substantia nigra pars compacta (SNpc) is highly sensitive to normal aging and selectively degenerates in Parkinson's disease. However, ventral tegmental area (VTA), a region adjacent to SNpc, is less affected in PD. Until now, molecular mechanisms behind VTA aging have not been fully investigated using high throughput techniques. Here, aging-associated early changes in transcriptome of VTA were investigated comparing late middle-aged (18 months old) to young (2 months old) mice. Three age groups of C57 wild type mice were used in microarray analysis: young (2 months old), middle aged (10 months old), and late-middle aged (18 months old) mice. Four replicates were included in each age group and each replicate was pooled from 5 mice (5 mice/replicate x 4 replicates x 3 age groups). Total RNA was isolated from VTA for hybridization on Affymetrix microarrays.

2013-05-29 | E-GEOD-45044 | biostudies-arrayexpress

Stromal inflammation is a targetable driver of blood aging [droplet-based scRNAseq - Batch 2]

Project description:To investigate the role of IL1 signaling in hematopoietic aging, we performed droplet-based scRNAseq (10X Genomics) of hematopoietic stem and progenitor cells (LK/LSK) and unfractionated endosteal and central marrow stromal cells (Ter119-/CD45-) from young wild type and young and old wild type and IL1R1-/- C57BL/6 mice.

2022-11-02 | GSE189217 | GEO

Geriatric muscle stem cells switch reversible quiescence into senescence (Set 3; Adult vs. Young)

Project description:Regeneration of skeletal muscle depends on a population of adult stem cells (satellite cells) that remain quiescent throughout life. Satellite cell regenerative functions decline with aging. We report that geriatric satellite cells, compared to old and adult cells, are incapable of maintaining their normal quiescent state in muscle homeostatic conditions, and this irreversibly affects their intrinsic regenerative and self-renewal capacities. We analyzed the global changes in gene expression occurring within muscle stem cells (satellite cells) in homeostatic conditions during physiological aging. Pure satellite cell populations from dissociated skeletal muscle from Young (2-3 months) and Adult (6 months) mice were isolated using a well-established flow cytometry protocol gating on integrin a7(+)/CD34(+) (positive selection) and Lin- (CD31, CD45, CD11b, Sca1) (negative selection).

2013-12-31 | E-GEOD-53726 | biostudies-arrayexpress

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