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Table 2 IC50 values (after 72 h) of the tested plant extracts towards leukemia CCRF-CEM cells and as determined by the resazurin assay

From: Cytotoxicity of methanol extracts of 10 Cameroonian medicinal plants towards multi-factorial drug-resistant cancer cell lines

Tested plant IC50 values (μg/mL)
Alchornea laxiflora roots >80
Boerhavia diffusa (whole plant) >80
Combretum hispidum bark >80
Eremomastax speciosa (whole plant) >80
Laportea aestuans (whole plant) >80
Laportea ovalifolia leaves >80
Laportea ovalifolia roots >80
Spathodea campanulata leaves >80
Pennisetum purpureum (whole plant) 69.01 ± 7.99
Spathodea campanulata bark 63.29 ± 8.61
Spathodea campanulata roots 58.08 ± 4.27
Alchornea laxiflora bark 49.21 ± 11.16
Alchornea laxiflora leaves 43.67 ± 4.06
Albizia adianthifolia leaves (AAL) 33.34 ± 3.55
Combretum hispidum leaves 32.05 ± 2.41
Alchornea cordifolia roots (ACR) 27.28 ± 1.22
Alchornea cordifolia bark (ACB) 12.57 ± 0.55
Alchornea cordifolia leaves (ACL) 8.02 ± 0.23
Albizia adianthifolia bark (AAB) 1.45 ± 0.13
Albizia adianthifolia roots (AAR) 0.98 ± 0.08
Doxorubicin 0.11 ± 0.03
  1. In bold: significant cytotoxic effect; Leukemia CCRF-CEM cells were tested in RPMI 1640 medium supplemented with 10 % FBS and 1 % penicillin-streptomycin