• Elena Matei, Anita Cristina Ionescu, Manuela Enciu, Violeta Popovici, Anca Florentina Mitroi, Mariana Aschie, Mariana Deacu, Gabriela Isabela Băltățescu, Antonela-Anca Nicolau, Mihai Cătălin Roșu, Miruna Cristian, Nicolae Dobrin, Constanța Ștefanov, Mihaela Pundiche Butcaru, and Georgeta Camelia Cozaru.
• Center for Research and Development of the Morphological and Genetic Studies of Malignant Pathology, "Ovidius" University of Constanta, Constanta, Romania.
• Medicine (Baltimore). 2024 Sep 13; 103 (37): e39450e39450.

AbstractTumor heterogeneity results in aggressive cancer phenotypes with acquired resistance. However, combining chemical treatment with adjuvant therapies that cause cellular structure and function perturbations may diminish the ability of cancer cells to resist at chemical treatment and lead to a less aggressive cancer phenotype. Applied treatments on prostate hyperplasia primary cell cultures exerted their antitumor activities through mechanisms including cell cycle blockage, oxidative stress, and cell death induction by flow cytometry methods. A 5.37 mM Chloramphenicol dose acts on prostate hyperplasia cells by increasing the pro-oxidant status, inducing apoptosis, autophagy, and DNA damage, but without ROS changes. Adding 6.30 mM vitamin C or 622 µM vitamin E as a supplement to 859.33 µM Chloramphenicol dose in prostate hyperplasia cells determines a significant increase of ROS level for a part of cells. However, other cells remain refractory to initial ROS, with significant changes in apoptosis, autophagy, and cell cycle arrest in G0/G1 or G2/M. When the dose of Chloramphenicol was increased to 5.37 mM for 6.30 mM of vitamin C, prostate hyperplasia cells reacted by ROS level drastically decreased, cell cycle arrest in G2/M, active apoptosis, and autophagy. The pro-oxidant action of 1.51 mM Erythromycin dose in prostate hyperplasia cell cultures induces changes in the apoptosis mechanisms and cell cycle arrest in G0/G1. Addition of 6.30 mM vitamin C to 1.51 mM Erythromycin dose in hyperplasia cell cultures, the pro-oxidant status determines diminished caspase 3/7 mechanism activation, but ROS level presents similar changes as Chloramphenicol dose and cell cycle arrest in G2/M. Flow cytometric analysis of cell death, oxidative stress, and cell cycle are recommended as laboratory techniques in therapeutic and diagnostic fields.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

33 keywords...

hide…