Aims: Twenty lactic acid bacteria strains were isolated from human faeces and tested by MTT assay for stimulation or inhibition of the proliferation of Vero and myeloma cells.
Methods and Results: None of the strains significantly affected the proliferation of Vero cells. However, two isolates (HN1 and HA8) showed a strong inhibition of myeloma cell proliferation (16·7 and 5·0%, respectively) by MTT assay.
Conclusions: Both strains have an anti‐proliferative effect on a tumoral cell line.
Significance and Impact of the Study: The beneficial effect of LAB cancer therapy has been linked to their ability for immunomodulation.
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