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Kerdpoo S, Laopajon W, Kasinrerk W, Pata S, Tatu T. A modified sandwich ELISA for accurate measurement of HbF in α-thalassemia carriers containing Hb Bart's and Hb Portland 1. J Immunoassay Immunochem 2018; 39:323-336. [PMID: 29985765 DOI: 10.1080/15321819.2018.1488726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Hemoglobin F (HbF) in blood lysate can be accurately measured by various methods, including immunoassay. In this study, we have produced polyclonal antibody (pAb) against HbF and established a modified sandwich-type ELISA for HbF quantification in blood lysates. The modified sandwich ELISA utilized anti-γ-globin monoclonal antibody clones Thal N/B as the capture antibody (Ab) coated on solid-phase, fluorescein isothiocyanate (FITC)-labeled pAb as the detecting Ab, and HPR-labeled anti-FITC Ab as the signal-generating Ab. By using an optimized blood lysate dilution, the HbF could be measured with no interference from hemoglobin Bart's (Hb Bart's) and hemoglobin Portland (Hb Portland 1) presented in α-thalassemia carriers. HbF levels measured by the modified sandwich ELISA were comparable to those quantified by the standard cation-exchange high performance liquid chromatography. We suggested that this modified sandwich ELISA was able to accurately measure HbF levels even in α-thalassemia carriers containing Hb Bart's and Hb Portland 1 and be an alternative method for HbF measurement.
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Affiliation(s)
- Sasiwan Kerdpoo
- a Research Center for Hematology and Health Technology, Division of Clinical Microscopy, Department of Medical Technology, Faculty of Associated Medical Sciences , Chiang Mai University , Chiang Mai , Thailand
| | - Witida Laopajon
- b Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences , Chiang Mai University , Chiang Mai , Thailand.,c Biomedical Technology Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency at the Faculty of Associated Medical Sciences , Chiang Mai University , Chiang Mai , Thailand
| | - Watchara Kasinrerk
- b Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences , Chiang Mai University , Chiang Mai , Thailand.,c Biomedical Technology Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency at the Faculty of Associated Medical Sciences , Chiang Mai University , Chiang Mai , Thailand
| | - Supansa Pata
- b Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences , Chiang Mai University , Chiang Mai , Thailand.,c Biomedical Technology Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency at the Faculty of Associated Medical Sciences , Chiang Mai University , Chiang Mai , Thailand
| | - Thanusak Tatu
- a Research Center for Hematology and Health Technology, Division of Clinical Microscopy, Department of Medical Technology, Faculty of Associated Medical Sciences , Chiang Mai University , Chiang Mai , Thailand.,c Biomedical Technology Research Center, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency at the Faculty of Associated Medical Sciences , Chiang Mai University , Chiang Mai , Thailand
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