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Short communication: Neutralizing antibodies in HIV-1-infected Brazilian individuals

机译:简短交流:中和HIV-1感染的巴西个体的抗体

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Tests for the detection of the humoral immune response to HIV-1 have to be standardized and established, demanding regional efforts. For this purpose the neutralizing antibody (NAb) assay for HIV-1 in TZM-bl cells was introduced in Brazil. Twenty plasma samples from HIV-1-infected individuals were assayed: 10 progressors and 10 long-term nonprogressors. These were tested against eight env-pseudotyped viruses (psVs) in the TZM-bl NAb assay and against HIV-1 strain HTLV/IIIB (HIV-1 IIIB) in primary lymphocytes. Forty-four percent of the samples showed neutralizing titers for psVs and 55% for HIV-1 IIIB. Plasma from progressors showed a broader neutralization and a higher potency. The introduction of these reference reagents encourages the participation of Brazil in future comparative assessments of anti-HIV-1 antibodies.
机译:必须对检测对HIV-1的体液免疫反应的检测进行标准化和建立,这需要区域努力。为此目的,在巴西引入了TZM-b1细胞中HIV-1的中和抗体(NAb)分析。分析了来自HIV-1感染者的20个血浆样品:10个进展者和10个长期非进展者。在TZM-bl NAb分析中针对八种env假型病毒(psVs)对它们进行了测试,对原代淋巴细胞中的HIV-1株HTLV / IIIB(HIV-1 IIIB)进行了测试。百分之四十四的样本对psV病毒显示中和效价,对HIV-1 IIIB的病毒显示55%的效价。进展者的血浆显示出更广泛的中和作用和更高的效力。这些参考试剂的引入鼓励巴西参与抗HIV-1抗体的未来比较评估。

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