TY - JOUR
T1 - Development of an immunofluorescence assay using recombinant proteins expressed in insect cells to screen and confirm presence of human herpesvirus 8-specific antibodies
AU - Minhas, Veenu
AU - Crosby, Lynsey N.
AU - Crabtree, Kay L.
AU - Phiri, Saul
AU - M'soka, Tendai J.
AU - Kankasa, Chipepo
AU - Harrington, William J.
AU - Mitchell, Charles D.
AU - Wood, Charles
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008/8
Y1 - 2008/8
N2 - Human herpesvirus 8 (HHV-8), or Kaposi's sarcoma (KS)-associated herpesvirus, has been linked to all forms of KS. The results of most current serological assays for the detection of HHV-8-specific antibodies have low levels of concordance among themselves. To establish a sensitive and specific testing strategy that can be used to screen for HHV-8-specific antibodies, three HHV-8 proteins, ORF65, ORF73, and K8.1A, were expressed by using baculoviral vectors in insect cells and incorporated into a monoclonal antibody-enhanced immunofluorescence assay (mIFA) termed the Sf9 three-antigen mIFA. The results obtained by this mIFA were compared to those obtained by a standard mIFA with an HHV-8-infected B-cell line (BC3 mIFA). Test sera were obtained from patients diagnosed with KS, human immunodeficiency virus type 1-infected patients at high risk for HHV-8 infection, and healthy controls from a local blood bank. The combined use of both assays had a sensitivity of 94% and a specificity of 96%. The performance of these two assays when they were used together indicates that they may be useful for the reliable detection of HHV-8-specific immunoglobulin G antibodies in a population.
AB - Human herpesvirus 8 (HHV-8), or Kaposi's sarcoma (KS)-associated herpesvirus, has been linked to all forms of KS. The results of most current serological assays for the detection of HHV-8-specific antibodies have low levels of concordance among themselves. To establish a sensitive and specific testing strategy that can be used to screen for HHV-8-specific antibodies, three HHV-8 proteins, ORF65, ORF73, and K8.1A, were expressed by using baculoviral vectors in insect cells and incorporated into a monoclonal antibody-enhanced immunofluorescence assay (mIFA) termed the Sf9 three-antigen mIFA. The results obtained by this mIFA were compared to those obtained by a standard mIFA with an HHV-8-infected B-cell line (BC3 mIFA). Test sera were obtained from patients diagnosed with KS, human immunodeficiency virus type 1-infected patients at high risk for HHV-8 infection, and healthy controls from a local blood bank. The combined use of both assays had a sensitivity of 94% and a specificity of 96%. The performance of these two assays when they were used together indicates that they may be useful for the reliable detection of HHV-8-specific immunoglobulin G antibodies in a population.
UR - http://www.scopus.com/inward/record.url?scp=49149108145&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=49149108145&partnerID=8YFLogxK
U2 - 10.1128/CVI.00487-07
DO - 10.1128/CVI.00487-07
M3 - Article
C2 - 18508931
AN - SCOPUS:49149108145
VL - 15
SP - 1259
EP - 1264
JO - Clinical and Vaccine Immunology
JF - Clinical and Vaccine Immunology
SN - 1556-6811
IS - 8
ER -