Project description:We report the gene expression changes in mobilized peripheral blood in aged, young, and aged/young samples cocultured in transwell. Restored samples refer to aged MPB co-cultured with young MPB in the transwell culture
Project description:We report the miRNA expression in each CD34+ cells and their exosomes in mobilized peripheral blood in aged, young, and aged/young samples cocultured in transwell. Restored samples refer to aged MPB co-cultured with young MPB in the transwell culture.
Project description:A prospective randomized trial has shown that there is a survival advantage for allogeneic transplant patients receiving Granulocyte Colony Stimulating Factor (G-CSF) stimulated peripheral blood mononuclear cells (GPBMC) versus bone marrow (BM) as a source of stem cells. The biological basis for this advantage is not clear, and may be attributable to qualitative as well as quantitative differences in the CD34 cells, T-cells and/or the monocytes transplanted. To begin to address this issue, gene expression patterns in monocytes isolated from G-CSF mobilized peripheral blood were compared those from normal, non-mobilized peripheral blood to identify functional pathways that may distinguish these two populations. Keywords: Cell type comparison
Project description:We show that platelet factors transfer rejuvenating effects of young plasma to the aging brain. Proteomic analysis of plasma from young and aged mice identified age-related changes in platelets. Systemic exposure of aged animals to the platelet fraction of young plasma decreased hippocampal neuroinflammation at a transcriptional and cellular level and ameliorated cognitive impairments. We identified the platelet-derived chemokine CXCL4/Platelet Factor-4 (PF4) as a pro-youthful circulating factor. Systemic PF4 administration decreased age-related neuroinflammation, restored the aging peripheral immune system to a more youthful state, and improved hippocampal-dependent learning and memory in aged mice.
Project description:T cells change substantially with age and are involved in atherosclerosis. Aging is the strongest clinical risk factor for atherosclerosis so we profiled T cells in young and aged mice prior to atherosclerosis (healthy) and in young and aged atherosclerotic mice (diseased).