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Adebayo VA, Adewale OB, Anadozie SO, Osukoya OA, Obafemi TO, Adewumi DF, Idowu OT, Onasanya A, Ojo AA. GC-MS analysis of aqueous extract of Nymphaea lotus and ameliorative potential of its biosynthesized gold nanoparticles against cadmium-induced kidney damage in rats. Heliyon 2023; 9:e17124. [PMID: 37484424 PMCID: PMC10361308 DOI: 10.1016/j.heliyon.2023.e17124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 06/02/2023] [Accepted: 06/08/2023] [Indexed: 07/25/2023] Open
Abstract
Plants possess compounds serving as reducing agents for green synthesis of gold nanoparticles (AuNPs), which is currently considered for biomedical application. Exposure to cadmium (Cd) can affect the functional integrity of the several organs such as kidney and liver. Nymphaea lotus (NL) is known for its several medicinal properties, including its protective role against tissue damages. This study investigated the bioactive compounds in NL using gas chromatography-mass spectroscopy (GC-MS) and ameliorative potential of its biosynthesized AuNPs (NL-AuNPs) against Cd-induced nephrotoxicity in rats. The presence of bioactive compounds in N. lotus was investigated by GC-MS in aqueous extract of NL. Gold nanoparticles were synthesized using aqueous extract of NL. Thirty rats were grouped into six (n = 5). Group 1 served as control, while group 2, 3, 4 and 5 received CdCl2 (10 mg/kg) orally for five days. Thereafter, groups 3, 4, and 5, respectively, received silymarin (75 mg/kg), 5 and 10 mg/kg NL-AuNPs, orally for 14 days, while group 6 received 10 mg/kg NL-AuNPs only. Rats were sacrificed after treatment, and biochemical parameters and kidney histopathology were evaluated. Bioactive compounds of pharmacological importance identified include pyrogallol, oxacyclohexadecan-2-one, 22-Desoxycarpesterol, 7,22-Ergostadienol, β-sitosterol and Dihydro-β-agarofuran. Cadmium caused nephrotoxicity in rats, as evidenced by significant (p < 0.05) increase in the levels of kidney function markers (serum urea and creatinine) and inflammatory markers (Interleukin-6 (IL-6) and Nuclear Factor-κB (NF-κB)) when compared with control. These changes were significantly (p < 0.05) ameliorated by the spherically-synthesized NL-AuNPs (25-30 nm) with the 5 mg/kg NL-AuNPs more potent against kidney damage induced by Cd in rats but high doses of NL-AuNPs (≥10 mg/kg) could be suggested toxic. NL possess phytochemicals capable of reducing gold salts to nanoparticle form, and doses up to 5 mg/kg could be considered safe for the treatment of renal damage occasioned by cadmium.
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Affiliation(s)
- Victor A. Adebayo
- Biochemistry Program, Department of Chemical Sciences, Afe Babalola University, Km 8.5, Afe Babalola Way, P.M.B 5454, Ado-Ekiti, 360001, Ado-Ekiti, Nigeria
| | - Olusola Bolaji Adewale
- Biochemistry Program, Department of Chemical Sciences, Afe Babalola University, Km 8.5, Afe Babalola Way, P.M.B 5454, Ado-Ekiti, 360001, Ado-Ekiti, Nigeria
| | - Scholastica Onyebuchi Anadozie
- Biochemistry Program, Department of Chemical Sciences, Afe Babalola University, Km 8.5, Afe Babalola Way, P.M.B 5454, Ado-Ekiti, 360001, Ado-Ekiti, Nigeria
| | - Olukemi Adetutu Osukoya
- Biochemistry Program, Department of Chemical Sciences, Afe Babalola University, Km 8.5, Afe Babalola Way, P.M.B 5454, Ado-Ekiti, 360001, Ado-Ekiti, Nigeria
| | - Tajudeen Olabisi Obafemi
- Biochemistry Program, Department of Chemical Sciences, Afe Babalola University, Km 8.5, Afe Babalola Way, P.M.B 5454, Ado-Ekiti, 360001, Ado-Ekiti, Nigeria
| | - Deborah Funmilayo Adewumi
- Industrial Chemistry Programme, Department of Chemical Sciences, Afe Babalola University, Km 8.5, Afe Babalola Way, P.M.B 5454, Ado-Ekiti, 360001, Ado-Ekiti, Nigeria
| | - Olajumoke Tolulope Idowu
- Industrial Chemistry Programme, Department of Chemical Sciences, Afe Babalola University, Km 8.5, Afe Babalola Way, P.M.B 5454, Ado-Ekiti, 360001, Ado-Ekiti, Nigeria
| | - Amos Onasanya
- Biochemistry Program, Department of Chemical Sciences, Afe Babalola University, Km 8.5, Afe Babalola Way, P.M.B 5454, Ado-Ekiti, 360001, Ado-Ekiti, Nigeria
| | - Abiodun Ayodele Ojo
- Industrial Chemistry Programme, Department of Chemical Sciences, Afe Babalola University, Km 8.5, Afe Babalola Way, P.M.B 5454, Ado-Ekiti, 360001, Ado-Ekiti, Nigeria
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Rayego-Mateos S, Basantes P, Morgado-Pascual JL, Brazal Prieto B, Suarez-Alvarez B, Ortiz A, Lopez-Larrea C, Ruiz-Ortega M. BET Protein Inhibitor JQ1 Modulates Mitochondrial Dysfunction and Oxidative Stress Induced by Chronic Kidney Disease. Antioxidants (Basel) 2023; 12:antiox12051130. [PMID: 37237996 DOI: 10.3390/antiox12051130] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/12/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
Among the mechanisms involved in the progression of kidney disease, mitochondrial dysfunction has special relevance. Epigenetic drugs such as inhibitors of extra-terminal domain proteins (iBET) have shown beneficial effects in experimental kidney disease, mainly by inhibiting proliferative and inflammatory responses. The impact of iBET on mitochondrial damage was explored in in vitro studies in renal cells stimulated with TGF-β1 and in vivo in murine unilateral ureteral obstruction (UUO) model of progressive kidney damage. In vitro, JQ1 pretreatment prevented the TGF-β1-induced downregulation of components of the oxidative phosphorylation chain (OXPHOS), such as cytochrome C and CV-ATP5a in human proximal tubular cells. In addition, JQ1 also prevented the altered mitochondrial dynamics by avoiding the increase in the DRP-1 fission factor. In UUO model, renal gene expression levels of cytochrome C and CV-ATP5a as well as protein levels of cytochrome C were reduced These changes were prevented by JQ1 administration. In addition, JQ1 decreased protein levels of the DRP1 fission protein and increased the OPA-1 fusion protein, restoring mitochondrial dynamics. Mitochondria also participate in the maintenance of redox balance. JQ1 restored the gene expression of antioxidant proteins, such as Catalase and Heme oxygenase 1 in TGF-β1-stimulated human proximal tubular cells and in murine obstructed kidneys. Indeed, in tubular cells, JQ1 decreased ROS production induced by stimulation with TGF-β1, as evaluated by MitoSOXTM. iBETs, such as JQ1, improve mitochondrial dynamics, functionality, and oxidative stress in kidney disease.
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Affiliation(s)
- Sandra Rayego-Mateos
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
- Ricors2040, 28029 Madrid, Spain
| | - Pamela Basantes
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
- Ricors2040, 28029 Madrid, Spain
| | - José Luis Morgado-Pascual
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain
| | - Beatriz Brazal Prieto
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
- Ricors2040, 28029 Madrid, Spain
| | - Beatriz Suarez-Alvarez
- Ricors2040, 28029 Madrid, Spain
- Translational Immunology, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
| | - Alberto Ortiz
- Ricors2040, 28029 Madrid, Spain
- Division of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
| | - Carlos Lopez-Larrea
- Ricors2040, 28029 Madrid, Spain
- Translational Immunology, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
| | - Marta Ruiz-Ortega
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
- Ricors2040, 28029 Madrid, Spain
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Leal EC, Carvalho E. Heme Oxygenase-1 as Therapeutic Target for Diabetic Foot Ulcers. Int J Mol Sci 2022; 23:ijms231912043. [PMID: 36233341 PMCID: PMC9569859 DOI: 10.3390/ijms231912043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/04/2022] [Accepted: 10/09/2022] [Indexed: 11/22/2022] Open
Abstract
A diabetic foot ulcer (DFU) is one of the major complications of diabetes. Wound healing under diabetic conditions is often impaired. This is in part due to the excessive oxidative stress, prolonged inflammation, immune cell dysfunction, delayed re-epithelialization, and decreased angiogenesis present at the wound site. As a result of these multifactorial impaired healing pathways, it has been difficult to develop effective therapeutic strategies for DFU. Heme oxygenase-1 (HO-1) is the rate-limiting enzyme in heme degradation generating carbon monoxide (CO), biliverdin (BV) which is converted into bilirubin (BR), and iron. HO-1 is a potent antioxidant. It can act as an anti-inflammatory, proliferative, angiogenic and cytoprotective enzyme. Due to its biological functions, HO-1 plays a very important role in wound healing, in part mediated through the biologically active end products generated by its enzymatic activity, particularly CO, BV, and BR. Therapeutic strategies involving the activation of HO-1, or the topical application of its biologically active end products are important in diabetic wound healing. Therefore, HO-1 is an attractive therapeutic target for DFU treatment. This review will provide an overview and discussion of the importance of HO-1 as a therapeutic target for diabetic wound healing.
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Affiliation(s)
- Ermelindo Carreira Leal
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
- Institute of Interdisciplinary Research, University of Coimbra, 3004-504 Coimbra, Portugal
- Correspondence: (E.C.L.); (E.C.); Tel.: +351-239-820-190 (E.C.L. & E.C.)
| | - Eugenia Carvalho
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
- Institute of Interdisciplinary Research, University of Coimbra, 3004-504 Coimbra, Portugal
- Correspondence: (E.C.L.); (E.C.); Tel.: +351-239-820-190 (E.C.L. & E.C.)
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Ferroptosis as a mechanism of non-ferrous metal toxicity. Arch Toxicol 2022; 96:2391-2417. [PMID: 35727353 DOI: 10.1007/s00204-022-03317-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/11/2022] [Indexed: 11/02/2022]
Abstract
Ferroptosis is a recently discovered form of regulated cell death, implicated in multiple pathologies. Given that the toxicity elicited by some metals is linked to alterations in iron metabolism and induction of oxidative stress and lipid peroxidation, ferroptosis might be involved in such toxicity. Although direct evidence is insufficient, certain pioneering studies have demonstrated a crosstalk between metal toxicity and ferroptosis. Specifically, the mechanisms underlying metal-induced ferroptosis include induction of ferritinophagy, increased DMT-1 and TfR cellular iron uptake, mitochondrial dysfunction and mitochondrial reactive oxygen species (mitoROS) generation, inhibition of Xc-system and glutathione peroxidase 4 (GPX4) activity, altogether resulting in oxidative stress and lipid peroxidation. In addition, there is direct evidence of the role of ferroptosis in the toxicity of arsenic, cadmium, zinc, manganese, copper, and aluminum exposure. In contrast, findings on the impact of cobalt and nickel on ferroptosis are scant and nearly lacking altogether for mercury and especially lead. Other gaps in the field include limited studies on the role of metal speciation in ferroptosis and the critical cellular targets. Although further detailed studies are required, it seems reasonable to propose even at this early stage that ferroptosis may play a significant role in metal toxicity, and its modulation may be considered as a potential therapeutic tool for the amelioration of metal toxicity.
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