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Table 2 Sensitivity of human DCs to the cytotoxic effects of antineoplastic chemotherapeutic agents in vitro

From: Chemomodulation of human dendritic cell function by antineoplastic agents in low noncytotoxic concentrations

Chemotherapeutic agent

(concentration, nM)

Apoptosis of DCs

(% ± SEM)

vinblastine (50)

3.2 ± 0.9

vinblastine (10)

1.1 ± 1.3

vinblastine (1)

0.9 ± 0.3

vinblastine(0.1)

-0.6 ± 0.3

vincristine (50)

6.5 ± 2.1

vincristine (10)

3.3 ± 1.9

vincristine (1)

0.5 ± 0.6

vincristine (0.1)

-0.6 ± 0.9

paclitaxel (25)

4.9 ± 2.3

paclitaxel (5)

2.2 ± 0.7

paclitaxel (1)

2.2 ± 0.4

paclitaxel (0.1)

0.1 ± 0.3

5-aza-2deoxycitidine (25)

7.4 ± 3.3

5-aza-2deoxycitidine (5)

0.8 ± 0.8

methotrexate (25)

3.9 ± 1.1

methotrexate (5)

0.8 ± 0.6

methotrexate (1)

0.3 ± 0.4

mitomycin C (25)

1.3 ± 1.4

mitomycin C (5)

-0.9 ± 0.4

doxorubicin (100)

5.5 ± 0.9

doxorubicin (25)

3.4 ± 0.3

doxorubicin (5)

0.6 ± 1.8

  1. Analysis of DC survival was carried out by flow cytometry after the staining with FITC-Annexin V and propidium iodide. DCs were treated with the cytotoxic agents for 48 h and analyzed by FACScan after staining. The background staining of control non-treated DC value was subtracted from experimental results. The results are express as the mean percentage of Annexin+PI- cells ± SEM of 3 independent assays. Student's t test was applied to compare the results of the treatment with different drug concentrations with control non-treated DC values in order to determine Effective Concentration (EC), i.e. the highest concentration of a chemotherapeutic agent that does not induce apoptosis in DCs.