نتایج جستجو برای: رسپتور cxcr4
تعداد نتایج: 7121 فیلتر نتایج به سال:
Estrogen independence and progression to a metastatic phenotype are hallmarks of therapeutic resistance and mortality in breast cancer patients. Metastasis has been associated with chemokine signaling through the SDF-1–CXCR4 axis. Thus, the development of estrogen independence and endocrine therapy resistance in breast cancer patients may be driven by SDF-1–CXCR4 signaling. Here we report that ...
PURPOSE To identify the miRNA regulators of C-X-C motif chemokine receptor 4 (CXCR4) and the underlying mechanism as well as the therapeutic and prognostic values in human glioblastoma (GBM). EXPERIMENTAL DESIGN miRNA profile analyses and bioinformatics predictions were used to identify the mediators of CXCR4, which were confirmed by luciferase reporter assay, Western blot assay and immunohis...
CXCR4 is a stem/progenitor cell surface receptor specific for the cytokine stromal cell-derived factor-1 (SDF-1α). There is evidence that bone marrow-derived CXCR4-expressing cells contribute to intimal hyperplasia (IH) by homing to the arterial subintima which is enriched with SDF-1α. We have previously found that transforming growth factor-β (TGFβ) and its signaling protein Smad3 are both upr...
Human herpesvirus 7 (HHV-7) is a T-lymphotropic virus which utilizes the CD4 receptor as its main receptor to enter the target cells. Hence, HHV-7 can interfere with human immunodeficiency virus type 1 (HIV-1) infection in CD4(+) T cells. It was recently suggested that the CXC chemokine receptor 4 (CXCR4), which was found to be a crucial coreceptor for T-tropic HIV-1 strains, may also play a ro...
چکیده زمینه و هدف: هدف این مطالعه بررسی ارتباط بین سرطان مثانه و بیان گیرنده آندروژن در مراجعه کنندگان به بیمارستان امام خمینی تهران بود. مواد و روش کار: در یک مطالعه مورد – شاهدی 59 بیمار مبتلا به سرطان مثانه و 59 فرد سالم که با اندیکاسیون دیگری تحت سیستوسکوپی قرار گرفته بودند وارد مطالعه شدند و بیان رسپتور آندروژن در آنها به روش ایمنوهیستوشیمیایی مورد بررسی قرار گرفت. همچنین بیان رسپتور در گر...
BACKGROUND This study was conducted to investigate the expression of CXCR4 in portal vein tumor thrombus (PVTT) tissue and its possible role in the invasiveness of tumor thrombus cells. METHODS We detected differential expression of CXCR4 between PVTT and hepatocellular carcinoma (HCC) by an immunohistochemical assay. Lentivirus-mediated RNA interference and a migration assay were performed o...
Diverse chemokines and their receptors have been associated with tumor growth, tumor dissemination, and local immune escape. In different tumor entities, the level of chemokine receptor CXCR4 expression has been linked with tumor progression and decreased survival. The aim of this study was to evaluate the influence of CXCR4 expression on the progression of human renal cell carcinoma. CXCR4 exp...
Purpose: The chemokine receptors CCR7 and CXCR4 have been shown to play an important role in cancer invasion and metastasis. This study was aimed to investigate CCR7 and CXCR4 expressions and evaluate the association between their expressions and the clinicopathological features in gastrointestinal cancer. Method: 27 paired tissue samples from patients who had curative surgery for gastrointesti...
Metastatic renal cell carcinoma (RCC) is often resistant to standard treatment, thereby requiring new therapeutic strategies. In this regard, tumor cell migration and metastasis have recently been shown to be regulated by chemokines and their respective receptors (e.g., SDF-1alpha/CXCR4). In the context of RCC, up-regulation of CXCR4 expression is closely related to the development of invasive ...
The chemokine receptor CXCR4 mediates the migration of hematopoietic cells to the stroma-derived factor 1alpha (SDF-1alpha)-producing bone marrow microenvironment. Using peptide-based CXCR4 inhibitors derived from the chemokine viral macrophage inflammatory protein II, we tested the hypothesis that the inhibition of CXCR4 increases sensitivity to chemotherapy by interfering with stromal/leukemi...
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