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. 2019 Nov 22;9:17336. doi: 10.1038/s41598-019-53912-w

Table 1.

Median IC50 and interquartile range (IQR) of HDACi candidates against P. falciparum clinical isolates, and laboratory strains 3D7 and Dd2.

Compound ID Median IC50 (IQR) in nM SI
Clinical isolates – children & adults combineda Clinical isolates – children onlya Clinical isolates – adults onlya 3D7b 3D7c Dd2c
1a

47.1

(15.9–386.9)

42.6

(20.2–175)

116

(11.7–910)

21.3 20 ± 10 12 ± 8 >1295
1d

21.9

(8.8–97.8)

21.6

(9.1–71.4)

25.9

(7.1–127)

8.7 11 ± 4 14 ± 6 >850
1g

167

(34.6–1022)

117

(34.1–1268)

326

(37.7–1020)

49.4 25 ± 18 31 ± 12 >1613
1h

38.4

(11.0–96.3)

26.3

(12.6–92.8)

73.7

(10.0–97.3)

23.3 9 ± 3 15 ± 6 >520
1i

174

(61.7–406)

126

(71.0–413)

215

(45.9–405)

54.9 21 ± 16 33 ± 15 >642
1u

13.6

(4.4–89.8)

14.7

(4.6–76.9)

13.1

(3.1–146)

12.1 4 ± 1 1 ± 1 >2496
1v

65.1

(28.7–220)

54.3

(26.6–95.9)

110

(38.9–316)

9.8 14 ± 4 14 ± 4 >499
2c

410

(152–966)

287

(168–861)

619

(130–1116)

150.4 95 ± 15 ND >526
2g

47.8

(9.6–215)

31.2

(9.6–231)

113

(6.8–200)

40.7 8.8 ± 3.2 ND 1483
2h

26.9

(5.2–94.5)

17.8

(5.6–93.3)

35.6

(3.8–95.5)

11.8 5.2 ± 3.6 ND 889
2i

32.1

(17.7–59.1)

28.0

(17.5–44.0)

40.8

(21.9–71.0)

11.3 9.7 ± 2.9 ND 64
2m

348

(191–760)

351

(193–834)

337

(178–535)

209.5 87 ± 44 ND 234
SAHA

267

(172–392)

276

(166–395)

267

(187–372)

187.3 139 ± 73 146 ± 22 >15

aMedian (IQR).

bSingle measurement in duplicate at study start.

cPreviously published data (mean IC50)5,6.

dSI Selectivity index: IC50 HepG2/IC50 3D7.

ND: not determined.