نتایج جستجو برای: stromal drive factor 1α
تعداد نتایج: 961534 فیلتر نتایج به سال:
PURPOSE To address the roles of the stromal derived factor-1 (SDF-1) α in the course of experimental corneal neovascularization (CNV). METHODS CNV was induced by alkali injury and compared in SDF-1α- or vehicle-treated mice two weeks after injury. Angiogenic factor expression in the early phase after injury was quantified by reverse transcription polymerase chain reaction (RT-PCR). Progenitor...
BACKGROUND Chronic kidney disease (CKD) is associated with increased risk for cardiovascular diseases (CVD). We hypothesized that inadequate angiogenic response in uremic patients could result from dysfunction of bone marrow-derived stromal cells [mesenchymal stem cells (MSCs)]. METHODS We investigated whether MSCs are functionally competent in uremia induced by partial kidney ablation in C57...
BACKGROUND Preconditioning with the volatile anesthetic isoflurane exerts protective effects in animal models of ischemia. The cytoprotective effects of isoflurane are dependent on the expression of hypoxia inducible factor-1 (HIF-1), a dimeric transcription factor that mediates cellular responses to hypoxia. METHODS We investigated the effect of isoflurane preconditioning on bone marrow stro...
Age is a significant risk factor for the development of cancer. However, the mechanisms that drive age-related increases in cancer remain poorly understood. To determine if senescent stromal cells influence tumorigenesis, we develop a mouse model that mimics the aged skin microenvironment. Using this model, here we find that senescent stromal cells are sufficient to drive localized increases in...
مقدمه: پیشرفت های اخیر در درمان بیماری های قلبی مدیون کشف سلول های پیش ساز اندوتلیالی می باشد. نیتریک اکسید (no یا nitric oxide) و فاکتور مشتق از سلول های استرومایی (stromal cell derived factor یا sdf-1α) در مهاجرت، جانشینی و تمایز این سلول ها به سلول های اندوتلیال بالغ نقش دارند. ابتلای بیشتر مردان به بیماری های قلبی، نشان دهنده ی نقش هورمون های جنسی در این زمینه می باشد. روش ها: در این مطالعه...
Various in vitro preconditioning strategies have been implemented to increase the regenerative capacity of MSCs. Among them are modulation culture atmosphere (hypoxia or anoxia), three-dimensional (3D), addition trophic factors (in form growth factors, cytokines hormones), lipopolysaccharides, and pharmacological agents. Preconditioning mesenchymal stem cells by culturing a hypoxic environment,...
Although cells derived from periodontal ligament (PDL) tissue are reported to have stem cell-like activity and are speculated to play a crucial role for tissue healing and regeneration after injury or orthodontic treatment, mechanisms regulating their recruitment and activation remain unknown. Recently, stromal cell-derived factor 1α (SDF-1α) has been reported to be important for stem cell homi...
High expression of the chemokine receptor 4, CXCR4, associated with a negative prognosis in acute myeloid leukemia, is related to hypoxia. Because CXCR4 expression is under the post-transcriptional control of microRNA-146a in normal and leukemic monocytic cells, we first investigated the impact of hypoxia on microRNA-146a and CXCR4 expression during monocytopoiesis and in acute monocytic leukem...
Recognition of a CXCR4 Sulfotyrosine by the Chemokine Stromal Cell-derived Factor-1α (SDF-1α/CXCL12)
Immune responses are orchestrated by controlling the initiation, magnitude, and duration of various signaling pathways. Adaptor proteins act as positive or negative regulators targeting critical molecules cascades. Signal-transducing adaptor protein-2 (STAP-2) contains typical features proteins, like a pleckstrin homology (PH) domain in N-terminal region Src 2 (SH2) central region. STAP-2 binds...
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