Article Publish Status: FREE
Abstract Title:

Polyphenolic Compounds ofBerry, Leaf, and Flower Extracts Affect Viability and Invasive Potential of Human Glioblastoma Cells.

Abstract Source:

Molecules. 2021 May 1 ;26(9). Epub 2021 May 1. PMID: 34062758

Abstract Author(s):

Natalia Żurek, Olena Karatsai, Maria Jolanta Rędowicz, Ireneusz Tomasz Kapusta

Article Affiliation:

Natalia Żurek


contains numerous health-promoting compounds that are also proposed to have anti-cancer properties. Herein, we aimed at a contemporaneous evaluation of the effects of polyphenol-rich extracts of berries, leaves, and flowers of sixspecies on the viability and invasive potential on the highly aggressive human glioblastoma U87MG cell line. The treatment with the extracts evoked cytotoxic effects, with the strongest in the berry extracts. All extracts not only promoted the apoptosis-related cleavage of poly (ADP-ribose) polymerase 1 (PARP1) but also substantially inhibited the activity of pro-survival kinases, focal adhesion kinase (FAK), and protein kinase B (PKB; also known as Akt), thus indicating the suppression of proliferative and invasive potentials of the examined glioblastoma cells. The qualitative and quantitative characterization of the extracts' content was also performed and revealed that amongst 37 polyphenolic compounds identified in the examinedextracts, the majority (29) was detected in berries; the leaf and flower extracts, exerting milder cytotoxic effects, contained only 14 and 13 compounds, respectively. The highest polyphenol content was found in the berries of, in which flavan-3-ols and phenolic acids predominated. Our results demonstrated that a high content of polyphenolic compounds correlated with the extract cytotoxicity, and especially berries were a valuable source of compounds with anti-cancer potential. This might be a promising option for the development of an effective therapeutic strategy against highly malignant glioblastomas in the future.

Study Type : In Vitro Study

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