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. CONCLUSION: 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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Zabala et al. (2001) studied this question.
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