HIV-1 resistance to neutralizing antibodies: Determination of antibody concentrations leading to escape mutant evolution
نویسندگان
چکیده
منابع مشابه
Broadly neutralizing antibodies to prevent HIV-1.
A dvances in technology—especially single-cell antibody cloning techniques—have led to the isolation and characterization of antibodies from people with HIV infection that can neutralize many variants (1). These are referred to as broadly neutralizing antibodies (bnAbs). Such antibodies can be detected in about 25% of persons with untreated HIV-1 infection (2), reflecting a host immune response...
متن کاملResistance of HIV-1 to the broadly HIV-1-neutralizing, anti-carbohydrate antibody 2G12.
The 2G12 mAb inhibits the infection of HIV-1 laboratory-adapted viruses at 50% inhibitory concentrations (IC(50)) ranging from 0.02 to 0.2 microg/ml when evaluated in different cell-types. However, isolates from various HIV-1 subtypes (such as clade C, D, A/E, F and group O) were not inhibited by 2G12 mAb (IC(50) >20 microg/ml). 2G12 mAb pressure in HIV-1 IIIB- and NL4.3-infected T cell culture...
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Treatment with broadly neutralizing antibodies (bNAbs) has recently proven effective against HIV-1 infections in humanized mice, non-human primates, and humans. For optimal treatment, susceptibility of the patient’s viral strains to a particular bNAb has to be ensured. Since no computational approaches are so far available, susceptibility can only be tested in expensive and time-consuming neutr...
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To date, no immunization of humans or animals has elicited broadly neutralizing sera able to prevent HIV-1 transmission; however, elicitation of broad and potent heavy chain only antibodies (HCAb) has previously been reported in llamas. In this study, the anti-HIV immune responses in immunized llamas were studied via deep sequencing analysis using broadly neutralizing monoclonal HCAbs as a guid...
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Most neutralizing antibodies act at the earliest steps of viral infection and block interaction of the virus with cellular receptors to prevent entry into host cells. The inability to induce neutralizing antibodies to HIV has been a major obstacle to HIV vaccine research since the early days of the epidemic. However, in the past three years, the definition of a neutralizing antibody against HIV...
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ژورنال
عنوان ژورنال: Virus Research
سال: 2016
ISSN: 0168-1702
DOI: 10.1016/j.virusres.2015.10.009