An improved microtiter assay for evaluating anti-HIV-1 neutralizing antibodies from sera or plasma

<p>Abstract</p> <p>Background</p> <p>The anti-HIV-1 neutralizing antibody assay is widely used in AIDS vaccine research and other experimental and clinical studies. The vital dye staining method applied in the detection of anti-HIV-1 neutralizing antibody has been used...

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Bibliografski detalji
Glavni autori: Chen Yunyun, Zhang Chiyu, Ben Kunlong
Format: Članak
Jezik:English
Izdano: BMC 2003-12-01
Serija:BMC Infectious Diseases
Teme:
Online pristup:http://www.biomedcentral.com/1471-2334/3/30
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author Chen Yunyun
Zhang Chiyu
Ben Kunlong
author_facet Chen Yunyun
Zhang Chiyu
Ben Kunlong
author_sort Chen Yunyun
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>The anti-HIV-1 neutralizing antibody assay is widely used in AIDS vaccine research and other experimental and clinical studies. The vital dye staining method applied in the detection of anti-HIV-1 neutralizing antibody has been used in many laboratories. However, the unknown factor(s) in sera or plasma affected cell growth and caused protection when the tested sera or plasma was continuously maintained in cell culture. In addition, the poor solubility of neutral red in medium (such as RPMI-1640) also limited the use of this assay.</p> <p>Methods</p> <p>In this study, human T cell line C8166 was used as host cells, and 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) instead of neutral red was used as vital dye. In order to avoid the effect of the unknown factor(s), the tested sera or plasma was removed by a washout procedure after initial 3–6 h culture in the assay.</p> <p>Result</p> <p>This new assay eliminated the effect of the tested sera or plasma on cell growth, improved the reliability of detection of anti-HIV-1 neutralizing antibody, and showed excellent agreement with the p24 antigen method.</p> <p>Conclusion</p> <p>The results suggest that the improved assay is relatively simple, highly duplicable, cost-effective, and well reliable for evaluating anti-HIV-1 neutralizing antibodies from sera or plasma.</p>
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spelling doaj.art-71e87b2bcdfc402783e465a002a32e442022-12-21T19:10:35ZengBMCBMC Infectious Diseases1471-23342003-12-01313010.1186/1471-2334-3-30An improved microtiter assay for evaluating anti-HIV-1 neutralizing antibodies from sera or plasmaChen YunyunZhang ChiyuBen Kunlong<p>Abstract</p> <p>Background</p> <p>The anti-HIV-1 neutralizing antibody assay is widely used in AIDS vaccine research and other experimental and clinical studies. The vital dye staining method applied in the detection of anti-HIV-1 neutralizing antibody has been used in many laboratories. However, the unknown factor(s) in sera or plasma affected cell growth and caused protection when the tested sera or plasma was continuously maintained in cell culture. In addition, the poor solubility of neutral red in medium (such as RPMI-1640) also limited the use of this assay.</p> <p>Methods</p> <p>In this study, human T cell line C8166 was used as host cells, and 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) instead of neutral red was used as vital dye. In order to avoid the effect of the unknown factor(s), the tested sera or plasma was removed by a washout procedure after initial 3–6 h culture in the assay.</p> <p>Result</p> <p>This new assay eliminated the effect of the tested sera or plasma on cell growth, improved the reliability of detection of anti-HIV-1 neutralizing antibody, and showed excellent agreement with the p24 antigen method.</p> <p>Conclusion</p> <p>The results suggest that the improved assay is relatively simple, highly duplicable, cost-effective, and well reliable for evaluating anti-HIV-1 neutralizing antibodies from sera or plasma.</p>http://www.biomedcentral.com/1471-2334/3/30HIV-1neutralizing antibodyMTTmicrotiter neutralization assayserum or plasma
spellingShingle Chen Yunyun
Zhang Chiyu
Ben Kunlong
An improved microtiter assay for evaluating anti-HIV-1 neutralizing antibodies from sera or plasma
BMC Infectious Diseases
HIV-1
neutralizing antibody
MTT
microtiter neutralization assay
serum or plasma
title An improved microtiter assay for evaluating anti-HIV-1 neutralizing antibodies from sera or plasma
title_full An improved microtiter assay for evaluating anti-HIV-1 neutralizing antibodies from sera or plasma
title_fullStr An improved microtiter assay for evaluating anti-HIV-1 neutralizing antibodies from sera or plasma
title_full_unstemmed An improved microtiter assay for evaluating anti-HIV-1 neutralizing antibodies from sera or plasma
title_short An improved microtiter assay for evaluating anti-HIV-1 neutralizing antibodies from sera or plasma
title_sort improved microtiter assay for evaluating anti hiv 1 neutralizing antibodies from sera or plasma
topic HIV-1
neutralizing antibody
MTT
microtiter neutralization assay
serum or plasma
url http://www.biomedcentral.com/1471-2334/3/30
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