Reference - Detail
| RRC ID | 54800 |
|---|---|
| Author | Hatano H, Goda T, Matsumoto A, Miyahara Y. |
| Title | Induced Proton Perturbation for Sensitive and Selective Detection of Tight Junction Breakdown. |
| Journal | Anal Chem |
| Abstract |
Tight junctions (TJs) in the epithelial cell gap play primary roles in body defense and nutrient absorption in multicellular organisms. Standard in vitro assays lack sensitivity, selectivity, temporal resolution, and throughput for bioengineering applications. Prompted by the rigorous barrier functions of TJ, we developed a TJ assay that senses proton leaks in the cell gap using ion-sensitive field-effect transistors. Upon exposure of Madin-Darby canine kidney (MDCK) cells cultured on a gate dielectric to a calcium-chelator EGTA, ammonia-assisted pH perturbation was enhanced solely in TJ-forming cells. This was supported by simulations with increased ion permeability in the paracellular pathway. Following administration of Clostridium perfringens enterotoxin as a specific TJ inhibitor to the MDCK cells, our method detected TJ breakdown at a 13× lower concentration than a conventional trans-epithelial electrical resistance assay. Thus, the semiconductor-based active pH sensing could offer an alternative to current in vitro assays for TJs in pathological, toxicological, and pharmaceutical studies. |
| Volume | 91(5) |
| Pages | 3525-3532 |
| Published | 2019-3-5 |
| DOI | 10.1021/acs.analchem.8b05237 |
| PMID | 30596415 |
| MeSH | Animals Bioengineering Cells, Cultured Clostridium perfringens / chemistry Dogs Enterotoxins / administration & dosage Enterotoxins / pharmacology Hydrogen-Ion Concentration Madin Darby Canine Kidney Cells / drug effects Madin Darby Canine Kidney Cells / metabolism Protons* Semiconductors Tight Junctions / drug effects Tight Junctions / metabolism* |
| IF | 6.35 |
| Times Cited | 3 |
| Altmetric score |
オルトメトリクス指標項目
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| The most frequently cited source | X(Twitter) |
| Total number of mentions | 1 |
| Altmetric score changes over past 6months | 0.0 |
| Resource | |
| Human and Animal Cells | MDCK(RCB0995) NIH/3T3(RCB2767) |