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- Title
Development and Evaluation of a Novel ELISA for Detection of Antibodies against HTLV-I Using Chimeric Peptides.
- Authors
Mosadeghi, Parvin; Heydari-Zarnagh, Hafez
- Abstract
We aimed to develope a peptide-based indirect ELISA to detect antibodies against Human T-lymphotropic virus type I (HTLV-I). Two chimeric peptides (CP-1 and CP-2) were designed using linear immunodominant epitopes of gp-46-I, and gp21-I proteins, according to the sequence from Uniprot database. These peptides were studied initially in the ELISA using infected sera. The most promising peptideCP-1, was used to develop a peptide ELISA for detection of HTLV-I infected sera. The optimal conditions for CP-1ELISA were: the optimum coating buffer was 100mM NaHCO3, pH 9.6; coating peptide concentration was 10 µg/mL; the optimal blocking buffer was5% fetal bovine serum (FBS); the secondary antibody concentration was 1:2000; and serum dilution was 1:20. 20serum samples from HTLV-I infected patients were evaluated by ELISA developed. CP-1 showed high antigenicity while lacking any cross-reactivity with normal human sera. The results of evaluations indicated that in comparison with commercial ELISA, CP-1 ELISA showed good sensitivity and specificity. With further validation, CP-1as described in the present study could be introduced as novel reliable and cost-effective candidates for the high-specific screening of HTLV-I/-II infections in endemic regions.
- Subjects
ENZYME-linked immunosorbent assay; IMMUNOGLOBULINS; HTLV-I; PEPTIDOMIMETICS; VIRAL disease diagnosis; AMINO acids; ANTIGENS; COMPARATIVE studies; RESEARCH methodology; MEDICAL cooperation; PEPTIDES; PROTEINS; RESEARCH; RETROVIRUSES; VIRAL antibodies; VIRAL antigens; EVALUATION research; RNA virus infections
- Publication
Iranian Journal of Allergy, Asthma & Immunology, 2018, Vol 17, Issue 2, p144
- ISSN
1735-1502
- Publication type
journal article