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Hybridoma as a specific, sensitive, and ready to use sensing element: a rapid fluorescence assay for detection of Vibrio cholerae O1.
- Source :
-
Analytical and bioanalytical chemistry [Anal Bioanal Chem] 2016 Sep; Vol. 408 (23), pp. 6443-51. Date of Electronic Publication: 2016 Jul 20. - Publication Year :
- 2016
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Abstract
- Over the last decade, isolation and purification of monoclonal antibodies, for diagnostic analysis, have been carried out using the hybridoma expression system. The present study describes a novel example of a detection system using hybridoma cells containing antibody against O1 antigen directly for V. cholerae diagnosis, which is a major health problem in many parts of the world, especially in developing countries. This method has advantages such as simplicity, ease of process, and it does not require manipulation of hybridoma cell. For this approach, an efficient amount of fluorescence calcium indicator, fura 2-AM, was utilized, which emitted light when the intracellular calcium concentration increased as result of antigen binding to specific antibody. More reliable results are obtained via this method and it is considerably faster than other methods, which has the response time of less than 45 s for detection of V. Cholerae O1. Also, the limit of detection was computed to be 50 CFU/mL (<13 CFU per assay). In addition, no significant responses were observed in the presence of other bacteria with specific hybridoma or other cell lines exposed to V. cholerae O1. Furthermore, this method was successfully applied to V. cholerae O1 detection in spiked environmental samples, including water and stool samples without any pretreatment. All results reveal that hybridoma cells can provide a valuable, simple, and ready to use tool for rapid detection of other pathogenic bacteria, toxins, and analytes.
- Subjects :
- Animals
Calcium analysis
Calcium Chelating Agents chemistry
Cholera microbiology
Fluorescence
Hybridomas
Limit of Detection
Mice
Antibodies, Monoclonal chemistry
Fluorescent Dyes chemistry
Fura-2 chemistry
Spectrometry, Fluorescence methods
Vibrio cholerae O1 isolation & purification
Water Microbiology
Subjects
Details
- Language :
- English
- ISSN :
- 1618-2650
- Volume :
- 408
- Issue :
- 23
- Database :
- MEDLINE
- Journal :
- Analytical and bioanalytical chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 27438715
- Full Text :
- https://doi.org/10.1007/s00216-016-9762-y