نتایج جستجو برای: ccr5
تعداد نتایج: 4196 فیلتر نتایج به سال:
BACKGROUND So far, many studies have investigated the distribution of CCR5 genotype between HIV-1 infected patients and uninfected people. However, no definite results have been put forward about whether heterozygosity for a 32-basepair deletion in CCR5 gene (CCR5-Δ32) can affect HIV-1 susceptibility. METHODS We performed a meta-analysis of 18 studies including more than 12000 subjects for wh...
سابقه و هدف: هپاتیت c یک بیماری حاد یا مزمن کبدی در سراسر جهان است. کموکایندها و رسپتورهای کموکاینی با به کارگیری و فعال سازی سلول های التهابی به سمت کبد آلوده در ایجاد یک پاسخ ایمنی مؤثر علیه ویروس هپاتیت c (hcv) شرکت دارند. رسپتور کموکاینی ccr5 روی سلول های مختلفی از سیستم ایمنی بیان شده و گزارش شده است که پلی مورفیسم ccr5-59353t/c ممکن است با عفونت hcv مرتبط باشد. از این رو، این مطالعه به من...
The C-C chemokine receptor 5 (CCR5) is expressed on potential human immunodeficiency virus (HIV) target cells and serves as the predominant co-receptor for viral entry during initial transmission and through the early stages of infection. A homozygous Δ32 mutation in the CCR5 gene prevents CCR5 cell surface expression and thus confers resistance to infection with CCR5-tropic HIV strains. Transp...
Leukocidin ED (LukED) is a bicomponent pore-forming toxin produced by Staphylococcus aureus that lyses host cells by targeting the chemokine receptors CC chemokine receptor type 5 (CCR5), CXCR1, CXCR2, and DARC. In addition to its role as a receptor for LukED, CCR5 is the major coreceptor for primary isolates of human immunodeficiency virus type 1 (HIV-1) and has been extensively studied. To co...
Three haplotypes for the CCR2-CCR5 region previously have been shown to affect AIDS progression; however, it is not known if the protective and accelerating effects of the haplotypes are relatively constant throughout infection or exert their effects early or late in HIV type 1 infection. The authors report the relative contributions to AIDS progression of CCR2 64I, CCR5 Delta32, and the CCR5 p...
دیابت نوع دو (t2d) یک بیماری مولتی فاکتوریال است که با اندرکنش پیچیده و متقابل بین زمینه ژنتیکی و عوامل محیطی ایجاد می گردد. شواهدی از نقش نقایص در مسیر پیام رسانی انسولین و همچنین التهاب در ایجاد مقاومت به انسولین در افراد دیابتی نوع دو دیده شده است. سوبسترای گیرنده انسولینی یک (irs-1)فاکتوری حیاتی در مسیر پیام رسانی انسولین می باشد و جهش هایی در این ژن گزارش شده که در ایجاد استعداد ابتلا به د...
The coordinated expression of chemokines and receptors may be important in the directed migration of alloreactive T cells during graft-vs-host disease (GVHD). Recent work demonstrated in a murine model that transfer of CCR5-deficient (CCR5(-/-)) donor cells to nonconditioned haploidentical recipients resulted in reduced donor cell infiltration in liver and lymphoid tissues compared with transfe...
BACKGROUND The importance of the C-C chemokine receptor type 5 (CCR5) in HIV infection and disease progression was recognized with the discovery of the Δ32 allele. Individuals homozygous for this mutation lack functional CCR5, and are almost completely resistant to HIV infection. Heterozygous individuals display decreased cell surface CCR5, which slows disease progression. Phenotypic expression...
Targeted disruption of leukocyte trafficking to the gut represents a promising approach for the treatment of inflammatory bowel diseases (IBDs). CCR5, the shared receptor for MIP1α and β and RANTES, is expressed by multiple leukocytes. Here, we aimed to determine the role of CCR5 in mediating leukocyte trafficking in models of colitis, and evaluate the therapeutic potential of maraviroc, an ora...
With rare exceptions, all simian immunodeficiency virus (SIV) strains can use CCR5 as a coreceptor along with CD4 for viral infection. In addition, many SIV strains are capable of using CCR5 as a primary receptor to infect CD4-negative cells such as rhesus brain capillary endothelial cells. By using coupled fluorescence-activated cell sorter (FACS) and infection assays, we found that even very ...
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