TY - JOUR A1 - Rutz, Jochen A1 - Benchellal, Aicha A1 - Kassabra, Wajdi A1 - Maxeiner, Sebastian A1 - Bernd, August A1 - Kippenberger, Stefan A1 - Zöller, Nadja Nicole A1 - Chun, Felix A1 - Jüngel, Eva A1 - Blaheta, Roman A. T1 - Growth, proliferation and metastasis of prostate cancer cells is blocked by low-dose curcumin in combination with light irradiation T2 - International journal of molecular sciences N2 - Although anti-cancer properties of the natural compound curcumin have been reported, low absorption and rapid metabolisation limit clinical use. The present study investigated whether irradiation with visible light may enhance the inhibitory effects of low-dosed curcumin on prostate cancer cell growth, proliferation, and metastasis in vitro. DU145 and PC3 cells were incubated with low-dosed curcumin (0.1–0.4 µg/mL) and subsequently irradiated with 1.65 J/cm2 visible light for 5 min. Controls remained untreated and/or non-irradiated. Cell growth, proliferation, apoptosis, adhesion, and chemotaxis were evaluated, as was cell cycle regulating protein expression (CDK, Cyclins), and integrins of the α- and β-family. Curcumin or light alone did not cause any significant effects on tumor growth, proliferation, or metastasis. However, curcumin combined with light irradiation significantly suppressed tumor growth, adhesion, and migration. Phosphorylation of CDK1 decreased and expression of the counter-receptors cyclin A and B was diminished. Integrin α and β subtypes were also reduced, compared to controls. Irradiation distinctly enhances the anti-tumor potential of curcumin in vitro and may hold promise in treating prostate cancer. KW - curcumin KW - light irradiation KW - prostate cancer KW - growth KW - proliferation KW - metastasis Y1 - 2021 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/63513 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-635133 SN - 1422-0067 N1 - This research was funded by the Brigitta & Norbert Muth Stiftung, Wiesbaden, Germany. VL - 22 IS - 18, art. 9966 SP - 1 EP - 16 PB - Molecular Diversity Preservation International CY - Basel ER -