Computational study of metal complexes formed with EDTA, melatonin, and its main metabolites: implications in lead intoxication and clues to a plausible alternative treatment

Díaz-Cervantes, Erik; García‐Revilla, Marco A.; Soto-Arredondo, Karla J; Villaseñor-Granados, Tayde Osvaldo; Martínez-Alfaro, Minerva; Robles, Juvencio

doi:10.1007/s00894-018-3898-y

Cited by 5 publications

(3 citation statements)

References 25 publications

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“…2c). Finally, the ion transport process promoted by several kinds of proteins can be blocked by some heavy metals, being the last a higher competitive substrate for the predetermined substrate [60] and perhaps the metabolism process and the rupture of some endogenous molecules promote a different ion transport in some living organisms [61], which can be modeled via computational chemistry.…”

Section: Discussion Of Resultsmentioning

confidence: 99%

Response of Barley Seedlings to the Toxicity by Arsenic V

Mireles-Arriaga¹,

Saldaña‐Robles²,

Hernández-Ruíz³

et al. 2021

Pol. J. Environ. Stud.

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Due to its geological origin and the intense agro-industrial activity, regions whose vocation is the agri-food production present a high level of contamination by heavy metals as the arsenic that induces toxicity in the crops of economic importance as in the case of barley (Hordeum vulgare L.). The evaluation of the response of different cultivars and genotypes in the first phenological stages is indispensable to generate technical information regard the tolerance to arsenic and the same time theoretical knowledge about how this metal is absorbed. The aim of this study was to evaluate the physiological response of barley seedlings to arsenic V (AsV) toxicity and deduce how this metal could be absorbed by the plants. Seedlings of the cultivars Alina and Esperanza were evaluated under the concentrations of 100, 200, 500 and 700 mg L -1 . Besides, models for the proteins PHT1 and HvHMA1 were performed by homology with affinity assays for AsV. The seedlings of Alina presented higher degree of tolerance to the toxicity whereby potentially the productive plots of this cultivar Alina could tolerate higher concentrations of this heavy metal. Also, the AsV could be transported by its competence with the endogenous ions as Mg 2 + and PO4 3-.

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Section: Discussion Of Resultsmentioning

confidence: 99%

Response of Barley Seedlings to the Toxicity by Arsenic V

Mireles-Arriaga¹,

Saldaña‐Robles²,

Hernández-Ruíz³

et al. 2021

Pol. J. Environ. Stud.

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“…Disruption of the homeostasis of such metal ions as Zn, Cu, and Fe can lead to the uncontrolled production of ROS, which may impair the effectiveness of skeletal muscle tissue function [ 54 , 57 , 58 ]. One of the body’s natural free-radical scavengers and substances that affect the metabolism (homeostasis) of elements in tissues is the melatonin hormone [ 59 , 60 ]. To date, little has been known about the Zn, Cu, and Fe status under the conditions of simultaneous exposure to both Cd and melatonin.…”

Section: Discussionmentioning

confidence: 99%

Cadmium Accumulation and Depuration in the Muscle of Prussian Carp (Carassius gibelio Bloch) after Sub-Chronic Cadmium Exposure: Ameliorating Effect of Melatonin

Drąg‐Kozak

Łuszczek‐Trojnar

Socha

2021

Animals

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The aim of this study was to investigate the bioaccumulation of cadmium in the muscle tissue of Prussian carp during 7 and 13 weeks of exposure to different concentrations of this metal in water (0.4 and 4.0 mg/L), and the depuration of cadmium from muscle during the following 6-week depuration period in the presence of melatonin implants. Furthermore, the relationship between cadmium accumulation and the levels of essential bioelements (copper, zinc, iron) in muscle was evaluated, as well as the bioconcentration factor of cadmium. Heavy metal concentration was determined using atomic absorption spectrometry. Cadmium accumulation in fish muscle increased with the duration of exposure. Cd concentrations exceeded the permissible levels for human consumption in groups exposed to the higher concentration of this metal. Moreover, a significant increase of Zn and Fe levels in the muscle was observed. In the fish that received melatonin implants and were exposed to Cd, its level in the muscle was significantly lower. The depuration of accumulated cadmium depended mainly on the duration of the elimination period. This is the first study to report that melatonin co-administration can effectively protect the fish from the accumulation of cadmium in muscle tissue and changes in trace metal levels.

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“…In 2019, computational studies simulating physiological mediums reported results that supported these findings. However, when comparing Gibbs free energies between melatonin complexes formed with various metals examined using the well-known metal-chelating agent ethylenediaminetetraacetic acid (EDTA) [ 432 ] as control, copper complexed with melatonin and principal metabolites showed the lowest Gibbs free energy values in the order of EDTA, AMK, 3OHM, melatonin, and AFMK, where EDTA- and AMK-Cu complexes exhibited the highest stabilities with the lowest Gibbs free energy at approximately −161 and −149, respectively [ 433 ].…”

Section: Liquid–liquid Phase Separation May Regulate Prion Conversion...mentioning

confidence: 99%

Melatonin: Regulation of Prion Protein Phase Separation in Cancer Multidrug Resistance

Loh¹,

Reíter

2022

Molecules

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The unique ability to adapt and thrive in inhospitable, stressful tumor microenvironments (TME) also renders cancer cells resistant to traditional chemotherapeutic treatments and/or novel pharmaceuticals. Cancer cells exhibit extensive metabolic alterations involving hypoxia, accelerated glycolysis, oxidative stress, and increased extracellular ATP that may activate ancient, conserved prion adaptive response strategies that exacerbate multidrug resistance (MDR) by exploiting cellular stress to increase cancer metastatic potential and stemness, balance proliferation and differentiation, and amplify resistance to apoptosis. The regulation of prions in MDR is further complicated by important, putative physiological functions of ligand-binding and signal transduction. Melatonin is capable of both enhancing physiological functions and inhibiting oncogenic properties of prion proteins. Through regulation of phase separation of the prion N-terminal domain which targets and interacts with lipid rafts, melatonin may prevent conformational changes that can result in aggregation and/or conversion to pathological, infectious isoforms. As a cancer therapy adjuvant, melatonin could modulate TME oxidative stress levels and hypoxia, reverse pH gradient changes, reduce lipid peroxidation, and protect lipid raft compositions to suppress prion-mediated, non-Mendelian, heritable, but often reversible epigenetic adaptations that facilitate cancer heterogeneity, stemness, metastasis, and drug resistance. This review examines some of the mechanisms that may balance physiological and pathological effects of prions and prion-like proteins achieved through the synergistic use of melatonin to ameliorate MDR, which remains a challenge in cancer treatment.

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Computational study of metal complexes formed with EDTA, melatonin, and its main metabolites: implications in lead intoxication and clues to a plausible alternative treatment

Cited by 5 publications

References 25 publications

Response of Barley Seedlings to the Toxicity by Arsenic V

Response of Barley Seedlings to the Toxicity by Arsenic V

Cadmium Accumulation and Depuration in the Muscle of Prussian Carp (Carassius gibelio Bloch) after Sub-Chronic Cadmium Exposure: Ameliorating Effect of Melatonin

Melatonin: Regulation of Prion Protein Phase Separation in Cancer Multidrug Resistance

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