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Table 1 Antiproliferative and proapoptotic activity of HDACi in SS cells

From: Upregulation of ERK-EGR1-heparanase axis by HDAC inhibitors provides targets for rational therapeutic intervention in synovial sarcoma

Cell line

SAHA

FK228

IC50 a (μM)

IC50 a (μM)

% TUNEL positive

IC50a (nM)

(72 h)

(96 h)

cellsb

(72 h)

SYO-1

0.7 ± 0.1

0.5 ± 0.01

10.5 ± 1

4.4 ± 0.8

CME-1

0.8 ± 0.2

0.7 ± 0.2

6.7 ± 0.2

4.2 ± 0.1

MoJo

1.4 ± 0.5

0.8 ± 0.2

-c

8.4 ± 1.6

Yamato-SS

0.5 ± 0.2

0.5 ± 0.2

-c

3.8 ± 0.7

  1. a IC50, drug concentration inducing 50% inhibition of cell growth after the indicated time of exposure to the drug. IC50 values are expressed as mean ± SE from at least two biological replicates performed in duplicate. Raw data are reported in Supplementary Table S3
  2. b Apoptosis was assessed by TUNEL assay after drug treatment (2 μM) for 72 h in SYO-1, CME-1 and Yamato-SS cells and 96 h in MoJo cells. Mean percent of positive cells ± SE from at least two biological replicates are reported
  3. c - no TUNEL staining detected in drug-treated cells