Potential application for antimicrobial and antileukemic therapy of a flavonoid-rich fraction of Camellia sinensis

Autor: Mariana C. de Souza, Leonardo M. de Souza Mesquita, Fabíola L. Pena, Leticia Tamborlin, Laise C. da Silva, Juliane Viganó, Adriane E. Costa Antunes, Augusto D. Luchessi, Marta C. Teixeira Duarte, Gerardo F. Barbero, Mauricio A. Rostagno
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Food Chemistry Advances, Vol 1, Iss , Pp 100042- (2022)
Druh dokumentu: article
ISSN: 2772-753X
DOI: 10.1016/j.focha.2022.100042
Popis: The antimicrobial and antileukemic effect of a purified fraction of flavonoids from the leaves of Camellia sinensis was evaluated. An extraction yield of 9.77 mg.g-1 total flavonoids was recovered through a pressurized liquid extraction associated with solid-phase extraction. This fraction was tested against pathogenic microorganisms (Staphylococcus, Salmonella, and Enterococcus), considering the minimum inhibitory concentration. In addition, the human monocyte cell line THP-1, derived from a patient with acute monocytic leukemia, was used for the antitumor assay. The results show that the flavonoid-rich fraction obtained by coupling a Pressurized Liquids Extraction in-line with a Solid Phase Extraction (PLE-SPE) has a high antimicrobial effect and resulted in cell cycle blockage G0 / G1, increased DNA fragmentation, and altered leukemic cell morphology. These results suggest that a flavonoid-rich fraction obtained from Camellia sinensis can be applied as potential adjuvants in chemotherapy treatment to mitigate the side effects caused by chemotherapy or even as a supplement to cancer therapy.
Databáze: Directory of Open Access Journals