The detection and characterization of pathogenic Leptospira and the use of OMPs as potential antigens and immunogens.

The detection of leptospires in patient blood in the first week of the disease using PCR provides an early diagnostic tool. PCR using two sets of primers (G1/G2 and B64-I/B64-II) tested with samples seeded with 23 leptospiral strains from pathogenic and non-pathogenic strains was able to amplify lep...

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Main Authors: Gebriel, A.M., Subramaniam, G., Sekaran, S.D.
Format: Article
Published: 2006
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Online Access:http://eprints.um.edu.my/623/
http://www.ncbi.nlm.nih.gov/pubmed/17322822
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spelling my.um.eprints.6232014-10-21T04:50:04Z http://eprints.um.edu.my/623/ The detection and characterization of pathogenic Leptospira and the use of OMPs as potential antigens and immunogens. Gebriel, A.M. Subramaniam, G. Sekaran, S.D. R Medicine (General) The detection of leptospires in patient blood in the first week of the disease using PCR provides an early diagnostic tool. PCR using two sets of primers (G1/G2 and B64-I/B64-II) tested with samples seeded with 23 leptospiral strains from pathogenic and non-pathogenic strains was able to amplify leptospiral DNA from pathogenic strains only. Of the 39 antibody negative samples collected from patients suspected for leptospirosis, only 1 sample (2.6%) was PCR positive. Using LSSP-PCR, the G2 primers allowed the characterization of Leptopira species to 10 different genetic signatures which may have epidemiological value in determining species involved in outbreaks. Leptospiral outer membrane proteins from three strains were purified and reacted against patients sera and gave rise to different profiles for pathogenic and non-pathogenic strains. Lymphocytes of mice injected with OMPs proliferated and released IFN(-3) when stimulated in vitro using Leptospira OMP as antigens. This suggests that an immune response could be established using leptospiral OMPs as a putative vaccine. OMPs were also used in a Dot-ELISA to detect antibodies against Leptospira pathogens in humans. 2006-12 Article PeerReviewed Gebriel, A.M. and Subramaniam, G. and Sekaran, S.D. (2006) The detection and characterization of pathogenic Leptospira and the use of OMPs as potential antigens and immunogens. Tropical Biomedicine, 23 (2). pp. 194-207. ISSN 0127-5720 http://www.ncbi.nlm.nih.gov/pubmed/17322822 17322822
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic R Medicine (General)
spellingShingle R Medicine (General)
Gebriel, A.M.
Subramaniam, G.
Sekaran, S.D.
The detection and characterization of pathogenic Leptospira and the use of OMPs as potential antigens and immunogens.
description The detection of leptospires in patient blood in the first week of the disease using PCR provides an early diagnostic tool. PCR using two sets of primers (G1/G2 and B64-I/B64-II) tested with samples seeded with 23 leptospiral strains from pathogenic and non-pathogenic strains was able to amplify leptospiral DNA from pathogenic strains only. Of the 39 antibody negative samples collected from patients suspected for leptospirosis, only 1 sample (2.6%) was PCR positive. Using LSSP-PCR, the G2 primers allowed the characterization of Leptopira species to 10 different genetic signatures which may have epidemiological value in determining species involved in outbreaks. Leptospiral outer membrane proteins from three strains were purified and reacted against patients sera and gave rise to different profiles for pathogenic and non-pathogenic strains. Lymphocytes of mice injected with OMPs proliferated and released IFN(-3) when stimulated in vitro using Leptospira OMP as antigens. This suggests that an immune response could be established using leptospiral OMPs as a putative vaccine. OMPs were also used in a Dot-ELISA to detect antibodies against Leptospira pathogens in humans.
format Article
author Gebriel, A.M.
Subramaniam, G.
Sekaran, S.D.
author_facet Gebriel, A.M.
Subramaniam, G.
Sekaran, S.D.
author_sort Gebriel, A.M.
title The detection and characterization of pathogenic Leptospira and the use of OMPs as potential antigens and immunogens.
title_short The detection and characterization of pathogenic Leptospira and the use of OMPs as potential antigens and immunogens.
title_full The detection and characterization of pathogenic Leptospira and the use of OMPs as potential antigens and immunogens.
title_fullStr The detection and characterization of pathogenic Leptospira and the use of OMPs as potential antigens and immunogens.
title_full_unstemmed The detection and characterization of pathogenic Leptospira and the use of OMPs as potential antigens and immunogens.
title_sort detection and characterization of pathogenic leptospira and the use of omps as potential antigens and immunogens.
publishDate 2006
url http://eprints.um.edu.my/623/
http://www.ncbi.nlm.nih.gov/pubmed/17322822
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