HLA-C downregulation by HIV-1 adapts to host HLA genotype
نویسندگان
چکیده
منابع مشابه
Relative Resistance of HLA-B to Downregulation by Naturally Occurring HIV-1 Nef Sequences
UNLABELLED HIV-1 Nef binds to the cytoplasmic region of HLA-A and HLA-B and downregulates these molecules from the surface of virus-infected cells, thus evading immune detection by CD8(+) T cells. Polymorphic residues within the HLA cytoplasmic region may affect Nef's downregulation activity. However, the effects of HLA polymorphisms on recognition by primary Nef isolates remain elusive, as do ...
متن کاملThe emerging role of HLA-C in HIV-1 infection.
Recently, genome-wide association studies have identified the major histocompatibility complex class I protein HLA-C as an important molecule that affects HIV disease progression. The association between HLA-C and HIV disease outcome was originally determined through a single nucleotide polymorphism (SNP) 35 kb upstream of the HLA-C locus. More recent work has focused on elucidating the functio...
متن کاملبررسی آلو آنتی ژنهای HLA-B، HLA-A و HLA-C در جمعیتی از استان اصفهان
A random sample of 500 healthy unrelated subjects from Esfahan province were HLA typed for A, 8 and C locus antigens. The lymphocytes were separated from 5 ml of whole peripheral blood and were typed for HLA _ A, 8 and C by using the standard two stage microlymphocytotoxicity NIH technique. The findings suggest that in the study population, frequency of HLA-Al' A2, A3, Ag HLA-8s, 83S and HLA-CW...
متن کاملTranslation of HLA-HIV associations to the cellular level: HIV adapts to inflate CD8 T cell responses against Nef and HLA-adapted variant epitopes.
Strong statistical associations between polymorphisms in HIV-1 population sequences and carriage of HLA class I alleles have been widely used to identify possible sites of CD8 T cell immune selection in vivo. However, there have been few attempts to prospectively and systematically test these genetic hypotheses arising from population-based studies at a cellular, functional level. We assayed CD...
متن کاملNatural Killer Cell Cytotoxicity Against SKOV3 after HLA-G Downregulation by shRNA
Background: HLA-G is a nonclassical HLA class I molecule which, when elevated in tumor cells, is one of the main factors involved in tumor evasion of immune responses including NK and T cells. Objective: To evaluate the effect of HLA-G downregulation on NK cell cytotoxicity in tumor cell lines. Methods: The expression level of HLA-G was measured by real-time PCR and flowcytometry after transfec...
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ژورنال
عنوان ژورنال: PLOS Pathogens
سال: 2018
ISSN: 1553-7374
DOI: 10.1371/journal.ppat.1007257