Project description:MicroRNA has the potential for cross-regulation and functional integration of discrete biological processes during complex physiological events. In this study, we found that the highly expressed microRNAs in exosomes from bone marrow derived macrophage appear to control fibrotic healing response in the tendon. Notably, fibrotic microRNA-21 in mice distributed in the early stage of healing after tendon injury, having the similar expression with mammals. Therefore, we hypothesized the bone marrow derived macrophage secreted miRNAs-containing exosomes play important functions in peritendinous adhesion after tendon injury.
Project description:Unprogrammed macrophage polarization, is associated with diabetic wound ulcers. Nevertheless, development of corresponding drugs is still a challenge. Here, exosomes are isolated from naive bone marrow-derived macrophages (BMDMs) (M0-Exos), inflammatory BMDMs (M1-Exos), and anti-inflammatory BMDMs (M2-Exos), with the aim of pinpointing the exosomes functionality and identify global miRNAs expression profiles.
Project description:Transcription profiling of human bone marrow mesenchymal stem cells treated with exosomes isolated from chronic lymphocytic leukemia cell line MEC-1 supernatant. Cells were left untreated or treated with CLL-exosomes for 6h at 37C.
Project description:We hypothesized that miRNAs in the bone maroow mesenchymal stem cells (BM-MSC)-derived exosomes contributed to the phenotype change of breast cancer cells through exosome transfer. We analyzed the miRNA expression signature in BM-MSC-derived exosomes. We compared the miRNA expression levels in exosomes between BM-MSCs and adult fibroblasts (as a control). In this study, miRNA expression including in bone-marrow mesenchymal cell (BM-MSC)-derived exosomes was examined, and compared with that of exosomes derived from adult fibroblast cells or the BM-MSC cells. In addition, miRNA expression of BM-MSC exosomes was also compared with that of breast cancer cells with or without cancer stem cell marker.
Project description:Bone marrow derived macrophages of Lysz-Cre;Catnbtm2Kem(fl/fl) mouse were compared with bone marrow derived macrophage of Catnbtm2Kem(fl/fl) control mouse Total RNA extracted from bone marrow derived macrophage
Project description:We report the sequencing of total RNA from CD11b+ mouse bone marrow cells in three groups of C57BL/6 mice: 1) Mice treated with three systemic (tail vein) injections (Days 1, 3, and 5) of phosphate buffered saline (PBS) (pH = 7.4), 2) Mice treated with three tail vein injections (Days 1, 3, and 5) of exosomes derived from enzalutamide resistant CWR-R1 prostate cancer cells (EnzR exosomes), and 3) Mice treated with three tail vein injections of EnzR exosomes (Days 1, 3, and 5) and high-density lipoprotein mimetic nanoparticles (HDL NPs) (Days 0, 2, and 4). Mice were sacrificed on Day 6, when mouse bone marrow was harvested and RNA from CD11b+ cells was obtained. We find that mice treated with EnzR exosome exhibit alteration in the expression of the matricellular protein, thrombospondin-1. Moreover, we find that HDL NP pre-treatment prevented thrombospondin-1 downregulation in mice treated with EnzR exosomes. This is consistent with our published findings that HDL NPs inhibit the uptake of EnzR exosomes by CD11b+ mouse bone marrow cells.
Project description:Macrophages are central in regulating iron homeostasis. Transcription repressor Bach2 regulates by heme. Here we investigated the relationship between heme-regulated Bach2 and macrophage in bone marrow. We identified RFP-positive and negative macrophage were in bone marrow. We found that RFP-positive macrophage related with iron-heme homeostasis maintenance and RPF-negative population related with immune response. In RFP positive macrophage, we also found the lysosomal heme transporter hrg-1 was Bach2 direct target gene. Our results suggest that the function of the bone marrow macrophage alters according to expression of Bach2.
Project description:Macrophages are central in regulating iron homeostasis. Transcription repressor Bach1 regulates by heme. Here we investigated the relationship between heme-regulated Bach1 and bone marrow derived macrophage. We found that Bach1 KO macrophage showed that up-regulated genes were the process that iron-heme homeostasis and maintenance related gene compared with WT. Our results suggest that Bach1 expression is important to the heme homeostasis and maintenance in the bone marrow derived macrophage.