RESUMEN
The mechanisms for the protection of the human body from viral or bacterial agents are extremely diverse. In one such mechanism, an important role belongs to the cytidine deaminase APOBEC3 family, which is the factor of congenital immunity and protects the organism from numerous viral agents. One of the proteins of this family, APOBEC3G, is able to protect against Human Immunodeficiency Virus type 1 in the absence of viral protein Vif. In turn, Vif opposes APOBEC3G action, causing polyubiquity of the protein and degradation in the proteasome. The review describes possible ways to increase the anti-HIV activity of APOBEC3G, giving it resistance to viral protein Vif, as well as potential approaches to the use of modified APOBEC3G in gene therapy for HIV.
Asunto(s)
VIH-1 , Productos del Gen vif del Virus de la Inmunodeficiencia Humana , Desaminasa APOBEC-3G/genética , Citidina Desaminasa/genética , Citidina Desaminasa/metabolismo , Terapia Genética , VIH-1/metabolismo , Humanos , Productos del Gen vif del Virus de la Inmunodeficiencia Humana/genética , Productos del Gen vif del Virus de la Inmunodeficiencia Humana/metabolismoRESUMEN
Obtaining a pure recombinant Modified Vaccinia Ankara (MVA) virus is a multistage, time-consuming procedure. We describe a novel single-tube real-time PCR which enables determination of the amount of wild type and recombinant viruses and their ratio in plaques. Use of the real-time PCR significantly reduce the time and efforts needed to obtain purified recombinant MVA. The new approach has been applied to generate recombinant MVAs encoding different SARS-COV-2 antigens.
Asunto(s)
Antígenos Virales , Vectores Genéticos , SARS-CoV-2/genética , Virus Vaccinia/aislamiento & purificación , Animales , Línea Celular , Humanos , Reacción en Cadena en Tiempo Real de la PolimerasaRESUMEN
Beaf-peptone broth and some of its modifications, one of which is a simple and in expensive one to a leser extent binding to antibiotics, such as penicillin, oxytetracycline and streptomycin and providing sufficient growth of the test microbes were used to determine the antibiotic activity with the methods of serial dilutions. The simple modification was recommended for practical use. The MIC of the antibiotics in the above simple medium was less than that in the control. The results of the antibiotic activity determination on both media coincided.