Anticancer potential of acetone extracts from selected Potentilla species against human colorectal cancer cells.

Autor: Augustynowicz D; Department of Pharmacognosy, Medical University of Bialystok, Bialystok, Poland., Lemieszek MK; Department of Medical Biology, Institute of Rural Health, Lublin, Poland., Strawa JW; Department of Pharmacognosy, Medical University of Bialystok, Bialystok, Poland., Wiater A; Department of Industrial and Environmental Microbiology, Maria Curie-Skłodowska University, Lublin, Poland., Tomczyk M; Department of Pharmacognosy, Medical University of Bialystok, Bialystok, Poland.
Jazyk: angličtina
Zdroj: Frontiers in pharmacology [Front Pharmacol] 2022 Sep 29; Vol. 13, pp. 1027315. Date of Electronic Publication: 2022 Sep 29 (Print Publication: 2022).
DOI: 10.3389/fphar.2022.1027315
Abstrakt: Cinquefoils have been widely used in local folk medicine in Europe and Asia to manage various gastrointestinal inflammations and/or infections, certain forms of cancer, thyroid gland disorders, and wound healing. In the present paper, acetone extracts from aerial parts of selected Potentilla species, namely P. alba (PAL7), P. argentea (PAR7), P. grandiflora (PGR7), P. norvegica (PN7), P. recta (PRE7) , and the closely related Drymocalis rupestris (syn. P. rupestris ) (PRU7), were analysed for their cytotoxicity and antiproliferative activities against human colon adenocarcinoma cell line LS180 and human colon epithelial cell line CCD841 CoN. Moreover, quantitative assessments of the total polyphenolic (TPC), total tannin (TTC), total proanthocyanidins (TPrC), total flavonoid (TFC), and total phenolic acid (TPAC) were conducted. The analysis of secondary metabolite composition was carried out by LC-PDA-HRMS. The highest TPC and TTC were found in PAR7 (339.72 and 246.92 mg gallic acid equivalents (GAE)/g extract, respectively) and PN7 (332.11 and 252.3 mg GAE/g extract, respectively). The highest TPrC, TFC, and TPAC levels were found for PAL7 (21.28 mg catechin equivalents (CAT)/g extract, 71.85 mg rutin equivalents (RE)/g extract, and 124.18 mg caffeic acid equivalents (CAE)/g extract, respectively). LC-PDA-HRMS analysis revealed the presence of 83 compounds, including brevifolincarboxylic acid, ellagic acid, pedunculagin, agrimoniin, chlorogenic acid, astragalin, and tiliroside. Moreover, the presence of tri-coumaroyl spermidine was demonstrated for the first time in the genus Potentilla . Results of the MTT assay revealed that all tested extracts decreased the viability of both cell lines; however, a markedly stronger effect was observed in the colon cancer cells. The highest selectivity was demonstrated by PAR7, which effectively inhibited the metabolic activity of LS180 cells (IC 50 = 38 μg/ml), while at the same time causing the lowest unwanted effects in CCD841 CoN cells (IC 50 = 1,134 μg/ml). BrdU assay revealed a significant decrease in DNA synthesis in both examined cell lines in response to all investigated extracts. It should be emphasized that the tested extracts had a stronger effect on colon cancer cells than normal colon cells, and the most significant antiproliferative properties were observed in the case of PAR7 (IC 50 LS180 = 174 μg/ml) and PN7 (IC 50 LS180 = 169 μg/ml). The results of LDH assay revealed that all tested extracts were not cytotoxic against normal colon epithelial cells, whereas in the cancer cells, all compounds significantly damaged cell membranes, and the observed effect was dose-dependent. The highest cytotoxicity was observed in LS180 cells in response to PAR7, which, in concentrations ranging from 25 to 250 μg/ml, increased LDH release by 110%-1,062%, respectively. Performed studies have revealed that all Potentilla species may be useful sources for anti-colorectal cancer agents; however, additional research is required to prove this definitively.
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
(Copyright © 2022 Augustynowicz, Lemieszek, Strawa, Wiater and Tomczyk.)
Databáze: MEDLINE
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