• Traitements

  • Combinaison de traitements localisés et systémiques

  • Prostate

Radiosensitivity of Human Prostate Cancer Cells can be Modulated by Inhibition of 12-Lipoxygenase

Menée in vitro et in vivo, cette étude montre que des inhibiteurs de la 12-lipoxygénase peuvent réduire la radiorésistance des cellules cancéreuses humaines de la prostate

Summary Nearly 30% of prostate cancer (PCa) patients treated with potentially curative doses relapse at the sites of irradiation. How some tumor cells acquire radioresistance is poorly understood. The platelet-type 12-lipoxygenases (12-LOX)-mediated arachidonic acid metabolism is important in PCa progression. Here we show that 12-LOX confers radioresistance upon PCa cells. Treatment with 12-LOX inhibitors baicalein or BMD122 sensitizes PCa cells to radiation, without radiosensitizing normal cells. 12-LOX inhibitors and radiation, when combined, have super additive or synergistic inhibitory effects on the colony formation of both androgen-dependent LNCaP and androgen-independent PC-3 PCa cells. In vivo, the combination therapy significantly reduced tumor growth.

http://www.sciencedirect.com/science/article/pii/S0304383513002401

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