Transcriptome profiling of neutrophils in curdlan-injected Wild Type SKG mice and Mif KO (Mif -/-) SKG mice
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ABSTRACT:
PROVIDER: PRJNA750355 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR15277765_1.fastq.gz | Fastqsanger.gz | |||
| SRR15277765_2.fastq.gz | Fastqsanger.gz | |||
| SRR15277766_1.fastq.gz | Fastqsanger.gz | |||
| SRR15277766_2.fastq.gz | Fastqsanger.gz | |||
| SRR15277767_1.fastq.gz | Fastqsanger.gz |
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Project description:The curdlan-injected SKG mouse is a mouse model of spondyloarthritis. We identified neutrophils are one of the major immune cells produing MIF in the SKG mice. In this study, we performed total RNA sequecing analysis to identify differentially expressed protein-coding genes (DEGs) in neutrophils isolated from wild type SKG mice comapred to neutrophils isolated from Mif -/- SKG mice after curdlan treatment.
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2005-11-05 | E-MEXP-209 | biostudies-arrayexpress
Project description:Atherosclerosis is a chronic inflammatory condition of our arteries and the main underlying pathology of myocardial infarction and stroke. The pathogenesis is age-dependent, but the links between disease progression, age, and atherogenic cytokines and chemokines are incompletely understood. Here, we studied the chemokine-like inflammatory cytokine macrophage migration inhibitory factor (MIF) in atherogenic Apoe–/– mice across different stages of aging and cholesterol-rich high-fat diet (HFD). MIF promotes atherosclerosis by mediating leukocyte recruitment, lesional inflammation, and suppressing atheroprotective B- cells. However, links between MIF and advanced atherosclerosis across aging have not been systematically explored. We compared effects of global Mif-gene deficiency in 30-, 42-, and 48-week-old Apoe–/– mice on HFD for 24, 36, or 42 weeks, respectively, and in 52-week- old mice on a 6-week HFD. Mif-deficient mice exhibited reduced atherosclerotic lesions in the 30/24- and 42/36-week-old groups, but atheroprotection, which in the applied Apoe–/– model was limited to lesions in the brachiocephalic artery and abdominal aorta, was not detected in the 48/42- and 52/6-week-old groups. This suggested that atheroprotection afforded by global Mif-gene deletion differs across aging stages and atherogenic diet duration. To characterize this phenotype and study the underlying mechanisms, we determined immune cells in the periphery and vascular lesions, obtained a multiplex cytokine/chemokine profile, and compared the transcriptome between the age-related phenotypes. We found that Mif- deficiency promotes lesional macrophage and T cell counts in younger but not aged mice, with sub-group analysis pointing towards a role for Trem2+ macrophage. The transcriptomic analysis identified MIF- and aging-dependent changes in lipid, cell respiration, and inflammation pathways, and key enriched genes such as Cpne7, Cd6, Plin1, Cd274 hinting towards effects on lesional T cells, lipids, and foamy macrophages. Moreover, Mif-deficient aged mice exhibited a distinct plasma cytokine/chemokine signature consistent with the notion that mediators known to drive inflamm’aging are either not down-regulated or even up- regulated in Mif-deficient aged mice compared to the corresponding younger ones. Lastly, Mif-deficiency favored formation of lymphocyte-rich peri-adventitial leukocyte clusters. While the causative contributions of these mechanistic pillars and their interplay will be subject to future scrutiny, our study suggests that atheroprotection due to global Mif-gene deficiency in atherogenic Apoe–/– mice is reduced upon advanced aging and identifies previously unrecognized cellular and molecular targets that could explain this phenotype shift. These observations enhance our understanding of inflamm’aging and MIF pathways in atherosclerosis and may have implications for translational MIF-directed strategies.
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Project description:Gene Expression Analysis of Curdlan Production in Agrobacterium sp. ATCC 31749 Two conditions are compared with four biological replicates of each condition, corresponding to eight total samples. The control condition was sampled at 22 hours during the exponential growth phase when no curdlan is produced. The second condition was sampled at 70 hours after the initiation of curdlan production, corresponding to approximately 100 hours.
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