Table 2.

Viability of Caco-2 and HT-29 cells in response to infection with S. typhi or noninvasive E. coli

Cell line% Viable cells (mean ± SEM) after infection witha:
BRD691BRD1116E. coli HB101
Caco-293.42 ± 1.696.45 ± 7.7498.64 ± 3.76
HT-2991.92 ± 2.2093.43 ± 1.3496.24 ± 3.41
  • a Cell viability was assessed 48 h following initial infection, by using the tetrazolium dye MTT. Values are expressed as mean percentages compared to uninfected controls ± SEM (n = 6).