Abstract Title:

Chlorogenic acid activates ERK1/2 and inhibits proliferation of osteosarcoma cells.

Abstract Source:

J Cell Physiol. 2019 Oct 10. Epub 2019 Oct 10. PMID: 31602671

Abstract Author(s):

Luigi Sapio, Alessia Salzillo, Michela Illiano, Angela Ragone, Annamaria Spina, Emilio Chiosi, Severina Pacifico, Michelina Catauro, Silvio Naviglio

Article Affiliation:

Luigi Sapio


Osteosarcoma (OS) is a very aggressive metastatic pediatric and adolescent tumor. Due to its recurrent development of chemotherapy resistance, clinical outcome for OS patients remains poor. Therefore, discovering more effective anticancer agents is needed. Chlorogenic acid (CGA) is a phenolic compound contained in plant-related products that modulates many cellular functions and inhibits cell proliferation in several cancer types. However, few evidence is available in OS. Here, we investigate the effects of CGA in U2OS, Saos-2, and MG-63 OS cells. By multiple approaches, we demonstrate that CGA acts as anticancer molecule affecting the cell cycle and provoking cell growth inhibition mainly by apoptosis induction. We also provide evidence that CGA strongly activates extracellular-signal-regulated kinase1/2 (ERK1/2). Strikingly, ERK1/2 inhibitor PD98059 sensitizes the cells to CGA. Altogether, our data enforce the evidence of the anticancer activity mediated by CGA and provide the rationale for the development of innovative therapeutic strategies in OS cure.

Study Type : In Vitro Study

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