Cited by 97Biosensors and Analytical DetectionListeria monocytogenes in Food SafetyElectrochemical sensors and biosensors

A novel and simple cell-based detection system with a collagen-encapsulated B-lymphocyte cell line as a biosensor for rapid detection of pathogens and toxins

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Banerjee, Pratik, Lenz, Dominik, Robinson, Joseph Paul, Rickus, Jenna L, Bhunia, Arun K·2008·Laboratory Investigation

Abstract

Cell-based biosensors (CBBs) are becoming important tools for biosecurity applications and rapid diagnostics in food microbiology for their unique capability of detecting physiologically hazardous materials. A multi-well plate-based biosensor containing B-cell hybridoma, Ped-2E9, encapsulated in type I collagen matrix, was developed for rapid detection of viable cells of pathogenic Listeria, the toxin listeriolysin O, and the enterotoxin from Bacillus species. This sensor measures the alkaline phosphatase release from infected Ped-2E9 cells colorimetrically. Pathogenic L. monocytogenes cells and toxin preparations from L. monocytogenes or B. cereus showed cytotoxicity ranging from 24 to 98% at 3-6 h postinfection. In contrast, nonpathogenic L. innocua (F4247) and B. subtilis induced minimal cytotoxicity, ranging only 0.4-7.6%. Laser scanning cytometry and cryo-nano scanning electron microscopy confirmed the live or dead status of the infected Ped-2E9 cells in gel matrix. This paper presents the first example of a cell-based sensing system using collagen-encapsulated mammalian cells for rapid detection of pathogenic bacteria or toxin, and demonstrates a potential for onsite use as a portable detection system.

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Crossref · 10.1038/labinvest.3700703

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  • The biosensor showed no statistically significant difference in percent cytotoxicity values from the 2D assay format, confirming that 3D hybridoma cell biosensors maintain cellular sensitivity to pathogens.

    “The biosensor both simplified the assay and showed no statistically significant difference in percent cytoxicity values from the 2D assay format, confirming that 3D hybridoma cell biosensors maintain cellular sensitivity to pathogens. 96”

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Authors
Banerjee, P., Lenz, D., Robinson, J. P., Rickus, J. L., & Bhunia, A. K.
Affiliations
Purdue University West Lafayette (US)
Corresponding author
Bhunia, Arun K
Venue
Laboratory Investigation
Publisher
Elsevier BV
Published
2008-02
Volume
88
Issue
2
Pages
196-206
ISSN
0023-6837 (ISSN-L)
OpenAlex
W1966917612
Cited by
97
References
59
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2023: 2 · 2022: 5 · 2021: 6 · 2020: 13 · 2019: 5 · 2018: 6 · 2017: 3 · 2016: 1 · 2015: 9 · 2014: 6 · 2013: 9 · 2012: 5
FWCI
4.06
Type
journal article
Language
en
Open access
Locations
  • Laboratory Investigation (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Biosensors and Analytical Detection
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Listeria monocytogenes in Food Safety
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrochemical sensors and biosensors
Keywords
cell-based biosensors, B cell hybridomas, Listeria monocytogenes, listeriolysin O, pathogen detection, toxin detection, cytotoxicity, microplates, food microbiology, portable detection device
MeSH terms
Alkaline Phosphatase, Animals, B-Lymphocytes, Bacillus, Bacterial Toxins, Biological Assay, Cell Line, Cell Membrane, Cell Survival, Collagen, Listeria, Microscopy, Electron, Scanning, Biosensing Techniques, Cell Death, Laser Scanning Cytometry, Mice

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