Генетические факторы, влияющие на проникновение ВИЧ в клетку-мишень

Succeptibility to HIV and the dynamics of HIV infection progression to AIDS are dependent on unique individual factors. Revealing genetic features of natural resistance to HIV infection is of great importance for the development of effective strategies for disease control. This review presents an analysis of host gene alleles coding receptors and their ligands participating in viral entrance to target cell. These allelic variants and their combinations can have a significant influence on the individual resistance/sensitivity to HIV infection and may be associated with the HIV infection progression to AIDS.Восприимчивость к ВИЧ-инфекции, а также динамика развития заболевания носят индивидуальный характер. Раскрытие генетических основ естественной резистентности к ВИЧ чрезвычайно важно для выработки эффективных стратегий контроля заболевания. Обзор посвящен анализу аллельных вариантов генов хозяина, которые кодируют рецепторы и их лиганды, участвующие в процессе проникновения вируса в клетку-мишень. Эти аллельные варианты и их сочетания способны оказывать значимое влияние на устойчивость либо чувствительность индивидуума к ВИЧ-инфекции, а также могут быть ассоциированы со скоростью прогрессии ВИЧ-инфекции в СПИД

Genetic factors influencing HIV entry into target cells

Succeptibility to HIV and the dynamics of HIV infection progression to AIDS are dependent on unique individual factors. Revealing genetic features of natural resistance to HIV infection is of great importance for the development of effective strategies for disease control. This review presents an analysis of host gene alleles coding receptors and their ligands participating in viral entrance to target cell. These allelic variants and their combinations can have a significant influence on the individual resistance/sensitivity to HIV infection and may be associated with the HIV infection progression to AIDS

Allelic variants of human genes affecting HIV intracellular life cycle and regulating immune response to HIV infection

Host genetic factors influencing the intracellular part of HIV live cycle and regulating of HIV-specific immune response are reviewed. Its include genes coding proteins which support viral replication and assembly of new virions, genes coding antiviral defense proteins, HLA genes and some others. Variants of these genes and its compositions affect individual succeptibility/resistance to HIV infection, influence the pathogenesis of the disease and also associate with efficacy of antiretroviral therapy

EFFECTIVENESS OF THE LOOP-MEDIATED ISOTHERMAL AMPLIFICATION WITH FLUORESCENT DETECTION IN THE DIAGNOSIS OF PARVOVIRUS ENTERITIS IN CARNIVORES

The aim of the study was to evaluate the diagnostic value of the method of loop-mediated isothermal amplification of DNA with real-time fluorescent detection (real-time LAMP, or RT-LAMP) on the model of carnivore parvoviruses. Materials and methods. Samples of feces, blood and swabs from the rectum of different species of predatory animals with parvovirus enteritis (n = 39) and healthy animals (n = 31), as well as laboratory strains of mink enteritis virus, were analyzed by RT-LAMP using SYTO-9 and SYTO-82 dyes. Real-time PCR was used as a reference method. Results. In our study, the LAMP method with real-time fluorescence detection (RT-LAMP) in the carnivore parvovirus enteritis model provides high analytical sensitivity (1.5×103 copies of DNA/ml), diagnostic sensitivity and specificity (up to 100% under optimal conditions). Comparison of the two intercalating dyes showed that the SYTO-82 dye provides a higher signal-to-background ratio (22.6 ± 2.1) than the SYTO-9 dye (6.3 ± 1.5) (p <0.0000001 ). At the same time, SYTO-9 dye at the sensitivity limit (10 copies of DNA) provides an increase in fluorescence in the reaction mixture 13 minutes earlier than for SYTO-82 (23 and 36 minutes, respectively). Conclusion. RT-LAMP is a promising method for rapid and highly sensitive «point-of-care» diagnosis of infectious diseases, as well as in conditions of livestock farms or in field conditions