| Autor: |
Omar UM; Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia., Elmorsy EM; Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Mansoura University, Mansoura, Egypt.; Pathology Department, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia., Al-Ghafari AB; Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.; Cancer and Mutagenesis Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.; Research Center, Dar Al-Hekma University, Jeddah, Saudi Arabia. |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of immunotoxicology [J Immunotoxicol] 2022 Dec; Vol. 19 (1), pp. 81-92. |
| DOI: |
10.1080/1547691X.2022.2113840 |
| Abstrakt: |
Cadmium (Cd) is an immunotoxic metal frequently found in the environment. The in vitro study undertaken here evaluated the immunotoxic effects of Cd in isolated human peripheral blood monocytes (hPBM). The results of the studies of exposures to varying doses of Cd (0, 0.1, 1, 10, and 100 µM, as cadmium dichloride [CdCl 2 ]) for 3, 6, 12, 24, 48, and 72 hr showed the test agent was cytotoxic to the cells in time- and concentration-related manners. Thereafter, using only those doses found to not cause extreme cell lethality a 48-hr period, the impact of 0.1 or 1 µM CdCl 2 on the cells was evaluated. Functionally, CdCl 2 treatment led to time- and concentration-related decreases in hPBM phagocytic activities as well as in the ability of the cells to form/release cytokines (including tumor necrosis factor [TNF]-α and interleukin [IL]-6 and -8). The CdCl 2 also led to significantly decreased ATP production (in part, via inhibition of mitochondrial complexes I and III) as well as in mitochondrial membrane potentials (MMP) and oxygen consumption rates (OCR; associated with parallel increases in cell lactate production) in the cells. In addition, CdCl 2 treatment resulted in significant increases in mitochondrial membrane fluidity (MMF) and cell unsaturated fatty acid content. Based on the results here, one might conclude that some of the effects that arose during the CdCl 2 -induced dysfunction of the isolated hPBM (i.e. changes phagocytic activity, cytokine formation/secretion) could have evolved secondary to CdCl 2 -induced disruptions of hPBM cell bioenergetics - an effect that itself was a culmination of an overall toxicity from CdCl 2 upon the mitochondria within these cells. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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