Antitumoral activity of curcumin: an adjuvant therapeutic strategy
Curcumin, an active substance contained in an Indian spice called turmeric or curcuma, is well known for its anti-inflammatory and antioxidant properties. In recent times, it was taken into account and studied as an antitumoral molecule, by relying on its interference on several biological mechanisms, such as the inhibition of inflammatory mediators, the enhancement of detoxifying enzymes’ action and processes of cell growth and proliferation. Studies show how the high dosage of curcumin in vitro inhibits colorectal tumor cells, pancreatic tumor cells, lung cancer cells and glioblastoma’s cells, interfering in signaling pathways as Wnt/β-catenin, NF-kB and PI3K/Akt and leading to cell cycle arrest and apoptosis. Furthermore, the association between curcumin and chemotherapeutic agents such as 5-fluorouracil strengthens the drug’s cytotoxicity and cells’ susceptibility towards the chemotherapeutic agent.
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