pHi and DNA content modifications after ADR treatment in 3T3 fibroblasts. A microfluorimetric approach

This paper attempts to correlate morphological changes observed after ADR treatment with other cellular parameters. Experiments were carried out on control cells, ADR and cysteamine treated cells and the evaluation of DNA content and the determination of the pHi were studied using microspectrofluorimetry and Numerical Image Analysis. Results show that the DNA content and the pHi are modified significantly in presence of ADR but that no changes are observed when cells are treated with cysteamine alone. Furthermore no correlation could be established between these parameters and the class of cells that does not accumulate BaP. Further investigation will be necessary, first on other parameters such as intracellular Ca++, and second, by following parameters simultaneously on the same cell.