Disruption of poly(ADP-ribose) polymerase (PARP) pathways by inhibitors of PARP catalytic domain has been shown to increase the anti-tumour activity of temozolomide (TMZ). Since PARP is inhibited by poly(ADP)ribosylation, herein we tested whether inhibition of poly(ADP-ribose) glycohydrolase (PARG) might enhance TMZ efficacy. The PARG inhibitor N-bis-(3-phenyl-propyl)9-oxo-fluorene-2,7-diamide (GPI 16552) was administered in combination with TMZ to mice injected subcutaneously or intracranially with B16 melanoma cells. The ability of treatment to reduce melanoma metastatic spreading and invasion of the extracellular matrix was also tested. The results indicated that combined treatment with GPI 16552 and TMZ significantly reduced melanoma growth, increased life-span of mice bearing tumour at the CNS site, and decreased the ability of melanoma cells to form lung metastases and to invade the extracellular matrix. In conclusion, PARG inhibition represents an alternative strategy to enhance TMZ efficacy against melanoma in peripheral as well as at CNS site. (c) 2005 Elsevier Ltd. All rights reserved.

Tentori, L., Leonetti, C., Scarsella, M., Muzi, A., Vergati, M., Forini, O., et al. (2005). Poly(ADP-ribose) glycohydrolase inhibitor as chemosensitiser of malignant melanoma for temozolomide. EUROPEAN JOURNAL OF CANCER, 41(18), 2948-2957 [10.1016/j.ejca.2005.08.027].

Poly(ADP-ribose) glycohydrolase inhibitor as chemosensitiser of malignant melanoma for temozolomide

TENTORI, LUCIO;MUZI, ALESSIA;GRAZIANI, GRAZIA
2005-12-01

Abstract

Disruption of poly(ADP-ribose) polymerase (PARP) pathways by inhibitors of PARP catalytic domain has been shown to increase the anti-tumour activity of temozolomide (TMZ). Since PARP is inhibited by poly(ADP)ribosylation, herein we tested whether inhibition of poly(ADP-ribose) glycohydrolase (PARG) might enhance TMZ efficacy. The PARG inhibitor N-bis-(3-phenyl-propyl)9-oxo-fluorene-2,7-diamide (GPI 16552) was administered in combination with TMZ to mice injected subcutaneously or intracranially with B16 melanoma cells. The ability of treatment to reduce melanoma metastatic spreading and invasion of the extracellular matrix was also tested. The results indicated that combined treatment with GPI 16552 and TMZ significantly reduced melanoma growth, increased life-span of mice bearing tumour at the CNS site, and decreased the ability of melanoma cells to form lung metastases and to invade the extracellular matrix. In conclusion, PARG inhibition represents an alternative strategy to enhance TMZ efficacy against melanoma in peripheral as well as at CNS site. (c) 2005 Elsevier Ltd. All rights reserved.
dic-2005
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore BIO/14 - FARMACOLOGIA
English
Con Impact Factor ISI
(ADP-ribose) polymers; Blood-brain barrier; Brain tumours; Cancer; Metastasis; Poly(ADP-ribose) glycohydrolase; Poly(ADP-ribose) polymerase; Temozolomide
Tentori, L., Leonetti, C., Scarsella, M., Muzi, A., Vergati, M., Forini, O., et al. (2005). Poly(ADP-ribose) glycohydrolase inhibitor as chemosensitiser of malignant melanoma for temozolomide. EUROPEAN JOURNAL OF CANCER, 41(18), 2948-2957 [10.1016/j.ejca.2005.08.027].
Tentori, L; Leonetti, C; Scarsella, M; Muzi, A; Vergati, M; Forini, O; Lacal, P; Ruffini, F; Gold, B; Li, W; Zhang, J; Graziani, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/41651
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