Malignant pleural mesothelioma is a poorly responsive tumor known to overexpress the phase II detoxification enzyme glutathione-S-transferase, which catalyzes the conjugation between glutathione and platinum(II)-containing drugs. Therefore, we evaluated the effect of the strong glutathione S-transferase inhibitor NBDHEX on human mesothelioma cell lines (MSTO-211H, MPP89, MM-B1 and Mero 48a) featuring the most common mesothelioma phenotypes: epithelioid and biphasic. Even though a different response to NBDHEX was observed, the molecule was very effective on all cell lines tested, triggering a sustained activation of both JNK and p38, followed by caspase activation and apoptosis. NBDHEX also caused severe oxidative stress in the MPP89 cells and, to a lesser extent, in the MMB1 cells, while it did not cause a significant redox imbalance in the other cell lines. The efficacy of the drug was found to be comparable or even higher than that of cisplatin. Moreover, it showed synergistic or additive effects when used in combination with cisplatin. In conclusion, NBDHEX was effective on mesothelioma cell lines, with IC(50) values in the low micromolar range (IC(50) between 1 and 4 μM). These findings indicate that NBDHEX, alone or in combination with cisplatin, is a promising new strategy for treating this rare and aggressive malignancy.

De Luca, A., Pellizzari Tregno, F., Sau, A., Pastore, A., Palumbo, C., Alama, A., et al. (2013). Glutathione S-transferase P1-1 as a target for mesothelioma treatment. CANCER SCIENCE, 104(2), 223-230 [10.1111/cas.12061].

Glutathione S-transferase P1-1 as a target for mesothelioma treatment

De Luca, A;PALUMBO, CAMILLA;CICCONI, ROSELLA;FEDERICI, GIORGIO;CACCURI, ANNA MARIA
2013-02-01

Abstract

Malignant pleural mesothelioma is a poorly responsive tumor known to overexpress the phase II detoxification enzyme glutathione-S-transferase, which catalyzes the conjugation between glutathione and platinum(II)-containing drugs. Therefore, we evaluated the effect of the strong glutathione S-transferase inhibitor NBDHEX on human mesothelioma cell lines (MSTO-211H, MPP89, MM-B1 and Mero 48a) featuring the most common mesothelioma phenotypes: epithelioid and biphasic. Even though a different response to NBDHEX was observed, the molecule was very effective on all cell lines tested, triggering a sustained activation of both JNK and p38, followed by caspase activation and apoptosis. NBDHEX also caused severe oxidative stress in the MPP89 cells and, to a lesser extent, in the MMB1 cells, while it did not cause a significant redox imbalance in the other cell lines. The efficacy of the drug was found to be comparable or even higher than that of cisplatin. Moreover, it showed synergistic or additive effects when used in combination with cisplatin. In conclusion, NBDHEX was effective on mesothelioma cell lines, with IC(50) values in the low micromolar range (IC(50) between 1 and 4 μM). These findings indicate that NBDHEX, alone or in combination with cisplatin, is a promising new strategy for treating this rare and aggressive malignancy.
feb-2013
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore BIO/10 - BIOCHIMICA
English
Con Impact Factor ISI
mesothelioma
glutathione transferase
NBDHEX
De Luca, A., Pellizzari Tregno, F., Sau, A., Pastore, A., Palumbo, C., Alama, A., et al. (2013). Glutathione S-transferase P1-1 as a target for mesothelioma treatment. CANCER SCIENCE, 104(2), 223-230 [10.1111/cas.12061].
De Luca, A; Pellizzari Tregno, F; Sau, A; Pastore, A; Palumbo, C; Alama, A; Cicconi, R; Federici, G; Caccuri, Am
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/77308
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