Project description:Investigate the effect of recombinant human IL-17A on vascular smooth muscle cells cultured from human aortas. Experiment Overall Design: SMCs from the aortas of three different donors were cultured in M199 media supplemented with 20% FCS and used at passage 3. The cells were either not treated or treated with IL-17 at 100 ng/ml for 6 hr. The six samples were labeled as Untreated or IL-17-treated from three independent experiments labeled A, B, and C.
Project description:Investigate the effect of recombinant human IL-17A on vascular smooth muscle cells cultured from human aortas. Keywords: Dose response
Project description:The etiology of post-inflammatory gastrointestinal (GI) motility dysfunction, after resolution of acute symptoms of inflammatory bowel diseases (IBD) and intestinal infection, is largely unknown. Here, using an established mouse model of experimental enteritis, we show that enhancement of smooth muscle cell (SMC) contraction by interleukin (IL)-17A may be involved in postinflammatory GI hypermotility. To examine the effect of IL-17 in the small intestinal smooth muscle, we used whole genome microarray expression profiling to find out the genes which respond to IL-17 stimulus. The smooth muscle strips were peeled off from mouse small intestine and incubated 24h with or without IL-17. And we also examined the effect of 6-shogaol, which is one of the ingredients of Japanese traditional medicine for intestinal mortor disorder, Daikenchuto, in IL-17 stimulated small intestinal smooth muscle strip. The smooth muscle strips were peeled off from mice small intestine and incubated in the culture media for 24h with or without IL-17. A part of IL-17 stimulated strips were co-incubated with 6-shogaol. Six independent experiments were performed.
Project description:The etiology of post-inflammatory gastrointestinal (GI) motility dysfunction, after resolution of acute symptoms of inflammatory bowel diseases (IBD) and intestinal infection, is largely unknown. Here, using an established mouse model of experimental enteritis, we show that enhancement of smooth muscle cell (SMC) contraction by interleukin (IL)-17A may be involved in postinflammatory GI hypermotility. To examine the effect of IL-17 in the small intestinal smooth muscle, we used whole genome microarray expression profiling to find out the genes which respond to IL-17 stimulus. The smooth muscle strips were peeled off from mouse small intestine and incubated 24h with or without IL-17. And we also examined the effect of 6-shogaol, which is one of the ingredients of Japanese traditional medicine for intestinal mortor disorder, Daikenchuto, in IL-17 stimulated small intestinal smooth muscle strip.
Project description:Platelet-derived growth factor (PDGF) signalling and the subsequent activation of the calcium ion channel, ORAI1 are critical drivers of pathological remodelling of native vascular smooth muscle cells to proliferative state, which is a process associated with various vascular diseases. This study aims to reveal transcriptional networks altered following ORAI1 inhibition in vascular smooth muscle cells. To study the effect of ORAI1 inhibition on VSMC biology, we performed RNA-Seq analysis of PDGF-stimulated primary human aortic smooth muscle cells treated with either ORAI1 inhibitor, (n=4) or with vehicle (n=4), and investigated the effect of ORAI1 inhibition on the transcriptional response of cells.
Project description:Systemic arterial smooth muscle cells are exposed to a broad range of oxygen concentrations under physiological conditions. Hypoxia can modulate the proliferative response of smooth muscle cells leading to speculation about its role in vasculogenesis, vascular remodelling and the pathogenesis of arterial disease. The effect of hypoxia has been inconsistent, however, with both enhanced proliferation and growth arrest reported. Nevertheless, these reports support an important effect of hypoxia on smooth muscle cell proliferation and, given its physiological and clinical relevance, this requires clarification. We posited that variation in O2 concentration, within the range that exists in vivo, may have different effects on the proliferation and survival of vascular smooth muscle cells. Experiment Overall Design: Human aortic smooth muscle cells (HASMC) were propagated to passage 6 in SMGM-2 medium reached 80% confluence, the media was changed and the cells were incubated for a further 16 hrs or 48 hrs under either normoxic or hypoxic conditions (1% and 3%O2 ).