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A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency
Published on: October 5, 2019
Temperature corrected transepithelial electrical resistance (TEER) measurement to quantify rapid changes in
L-F Blume1, M Denker, F Gieseler
1Institute of Pharmacy, University of Kiel, Germany.
Die Pharmazie
|March 2, 2010
Summary
This study introduces a mathematical method to correct transepithelial electrical resistance (TEER) measurements for temperature variations. This allows for accurate, temperature-independent assessment of cell barrier function and paracellular permeability in cell culture models.
Area of Science:
- Cell Biology
- Biophysics
- Physiology
Background:
- Transepithelial electrical resistance (TEER) is crucial for assessing cell barrier integrity and tight junction dynamics in vitro.
- Temperature fluctuations significantly impact TEER measurements, hindering data reproducibility and cross-study comparisons.
- Existing TEER measurement protocols lack standardization for temperature compensation.
Purpose of the Study:
- To develop a reliable method for obtaining temperature-independent TEER values.
- To establish a mathematical correction strategy for TEER measurements affected by temperature variations.
- To improve the accuracy and comparability of TEER data in cell culture models.
Main Methods:
- Investigated the influence of temperature and electrode type on TEER measurements using Caco-2 and HPDE cell monolayers.
- Derived a mathematical model correlating TEER, temperature, medium viscosity, and cell culture insert pore size.
- Validated the temperature-corrected TEER (tcTEER) by comparing it with RITC dextran permeability assays.
Main Results:
- A novel mathematical method was developed to correct TEER values for temperature-induced changes.
- Temperature-corrected TEER (tcTEER) values demonstrated a strong correlation with actual monolayer permeability.
- The method effectively removes temperature-dependent variability from TEER measurements.
Conclusions:
- The presented mathematical solution enables simple and accurate determination of paracellular permeability.
- This approach provides temperature-independent TEER values, enhancing the reliability of cell barrier function analysis.
- The tcTEER method facilitates more robust comparisons of TEER data across diverse experimental conditions.
