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Viability of ASCs after treatment with the drugs. Cells were cultured in the absence or presence of increasing concentrations of MTX (A) or AZA (B) and viability and proliferation was monitored by MTT assay at day 2 (white bars) and day 7 (black bars). Mean and standard deviation relative to day 0 are represented. N=6. Abs, absorbance; ASC, adipose mesenchymal stem or stromal cells; MTX, methotrexate; AZA, azathioprine.
