1
|
Liu T, Cao HC, Wang R, Yang Q, Wei S, Pan P, Shi H. Polyphenol-hyaluronic acid-based hydrogel remodels the wound microenvironment and eliminates bacterial infection for accelerating wound healing. Int J Biol Macromol 2024; 280:135931. [PMID: 39322152 DOI: 10.1016/j.ijbiomac.2024.135931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 09/06/2024] [Accepted: 09/20/2024] [Indexed: 09/27/2024]
Abstract
The wound microenvironment, often characterized by alkaline pH and severe hypoxia, presents significant challenges to the healing of bacterial-infected wounds. While considerable research has focused on improving wound healing through effective bacterial elimination using advanced therapeutic approaches, the importance of regulating the wound microenvironment has received less emphasis. In this work, we developed a biocompatible hydrogel, HTFC, by incorporating CaO2 nanoparticles (CaO2 NPs) into a gel formed by tannic acid (TA), hyaluronic acid (HA), and Fe3+. The HA and TA in HTFC hydrogel help to create a slightly acidic microenvironment, facilitating the decomposition of CaO2 NPs to release H2O2 for chemodynamic therapy (CDT). The reduction properties of TA promote the recycling of Fe3+/Fe2+, enhancing CDT efficacy and partially converting H2O2 to O2, thereby alleviating hypoxia. Additionally, FeIIITA complexes in HTFC enhance CDT through photothermal therapy (PTT)-induced improvement of the Fenton reaction. This multifunctional hydrogel, with its synergistic effects of PTT and CDT, along with its ability to remodel the wound microenvironment from hypoxic and alkaline to normoxic and acidic, accelerates the bacterial-infected wound healing process.
Collapse
Affiliation(s)
- Tao Liu
- School of Biomedical Engineering, Anhui Medical University, Hefei 230032, PR China
| | - Hu-Chen Cao
- School of Biomedical Engineering, Anhui Medical University, Hefei 230032, PR China
| | - Ru Wang
- School of Biomedical Engineering, Anhui Medical University, Hefei 230032, PR China
| | - Qiang Yang
- School of Biomedical Engineering, Anhui Medical University, Hefei 230032, PR China
| | - Shuang Wei
- School of Biomedical Engineering, Anhui Medical University, Hefei 230032, PR China
| | - Pei Pan
- School of Pharmacy, Anhui Medical University, Hefei 230032, PR China.
| | - Hui Shi
- School of Biomedical Engineering, Anhui Medical University, Hefei 230032, PR China.
| |
Collapse
|
2
|
Wang X, He J, Sun M, Wang S, Qu J, Shi H, Rao B. High-dose vitamin C as a metabolic treatment of cancer: a new dimension in the era of adjuvant and intensive therapy. Clin Transl Oncol 2024:10.1007/s12094-024-03553-x. [PMID: 39259387 DOI: 10.1007/s12094-024-03553-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 06/04/2024] [Indexed: 09/13/2024]
Abstract
The anti-cancer mechanism of High-dose Vitamin C (HDVC) is mainly to participate in the Fenton reaction, hydroxylation reaction, and epigenetic modification, which leads to the energy crisis, metabolic collapse, and severe peroxidation stress that results in the proliferation inhibition or death of cancer cells. However, the mainstream view is that HDVC does not significantly improve cancer treatment outcomes. In clinical work and scientific research, we found that some drugs or therapies can significantly improve the anti-cancer effects of HDVC, such as PD-1 inhibitors that can increase the anti-cancer effects of cancerous HDVC by nearly three times. Here, the adjuvant and intensive therapy and synergistic mechanisms including HDVC combined application of chemoradiotherapies multi-vitamins, targeted drugs, immunotherapies, and oncolytic virus are discussed in detail. Adjuvant and intensive therapy of HDVC can significantly improve the therapeutic effect of HDVC in the metabolic treatment of cancer, but more clinical evidence is needed to support its clinical application.
Collapse
Affiliation(s)
- Xin Wang
- Department of General Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Center of Metabolism and Nutrition of Cancer, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer FSMP for State Market Regulation, Beijing, China
- Beijing International Science and Technology Cooperation Base for Cancer Metabolism and Nutrition, Beijing, China
| | - Jia He
- Department of General Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Center of Metabolism and Nutrition of Cancer, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer FSMP for State Market Regulation, Beijing, China
- Beijing International Science and Technology Cooperation Base for Cancer Metabolism and Nutrition, Beijing, China
| | - Minmin Sun
- CAS Engineering Laboratory for Nanozyme, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Shiwan Wang
- Department of General Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Center of Metabolism and Nutrition of Cancer, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer FSMP for State Market Regulation, Beijing, China
- Beijing International Science and Technology Cooperation Base for Cancer Metabolism and Nutrition, Beijing, China
| | - Jinxiu Qu
- Department of General Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Center of Metabolism and Nutrition of Cancer, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer FSMP for State Market Regulation, Beijing, China
- Beijing International Science and Technology Cooperation Base for Cancer Metabolism and Nutrition, Beijing, China
| | - Hanping Shi
- Department of General Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
- Center of Metabolism and Nutrition of Cancer, Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
- Key Laboratory of Cancer FSMP for State Market Regulation, Beijing, China.
- Beijing International Science and Technology Cooperation Base for Cancer Metabolism and Nutrition, Beijing, China.
- Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
| | - Benqiang Rao
- Department of General Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
- Center of Metabolism and Nutrition of Cancer, Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
- Key Laboratory of Cancer FSMP for State Market Regulation, Beijing, China.
- Beijing International Science and Technology Cooperation Base for Cancer Metabolism and Nutrition, Beijing, China.
| |
Collapse
|
3
|
Koppenol WH, Sies H. Was hydrogen peroxide present before the arrival of oxygenic photosynthesis? The important role of iron(II) in the Archean ocean. Redox Biol 2024; 69:103012. [PMID: 38183797 PMCID: PMC10808959 DOI: 10.1016/j.redox.2023.103012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/18/2023] [Accepted: 12/22/2023] [Indexed: 01/08/2024] Open
Abstract
We address the chemical/biological history of H2O2 back at the times of the Archean eon (2.5-3.9 billion years ago (Gya)). During the Archean eon the pO2 was million-fold lower than the present pO2, starting to increase gradually from 2.3 until 0.6 Gya, when it reached ca. 0.2 bar. The observation that some anaerobic organisms can defend themselves against O2 has led to the view that early organisms could do the same before oxygenic photosynthesis had developed at about 3 Gya. This would require the anaerobic generation of H2O2, and here we examine the various mechanisms which were suggested in the literature for this. Given the concentration of Fe2+ at 20-200 μM in the Archean ocean, the estimated half-life of H2O2 is ca. 0.7 s. The oceanic H2O2 concentration was practically zero. We conclude that early organisms were not exposed to H2O2 before the arrival of oxygenic photosynthesis.
Collapse
Affiliation(s)
- Willem H Koppenol
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology, Zürich, Switzerland.
| | - Helmut Sies
- Institute for Biochemistry and Molecular Biology I, Medical Faculty, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany; Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| |
Collapse
|
4
|
Rosa-Núñez E, Echavarri-Erasun C, Armas AM, Escudero V, Poza-Carrión C, Rubio LM, González-Guerrero M. Iron Homeostasis in Azotobacter vinelandii. BIOLOGY 2023; 12:1423. [PMID: 37998022 PMCID: PMC10669500 DOI: 10.3390/biology12111423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/07/2023] [Accepted: 11/10/2023] [Indexed: 11/25/2023]
Abstract
Iron is an essential nutrient for all life forms. Specialized mechanisms exist in bacteria to ensure iron uptake and its delivery to key enzymes within the cell, while preventing toxicity. Iron uptake and exchange networks must adapt to the different environmental conditions, particularly those that require the biosynthesis of multiple iron proteins, such as nitrogen fixation. In this review, we outline the mechanisms that the model diazotrophic bacterium Azotobacter vinelandii uses to ensure iron nutrition and how it adapts Fe metabolism to diazotrophic growth.
Collapse
Affiliation(s)
- Elena Rosa-Núñez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
- Escuela Técnica de Ingeniería Agraria, Alimentaria, y de Biosistemas, Universidad Politécnica de Madrid, Avda. Puerta de Hierro, 2, 28040 Madrid, Spain
| | - Carlos Echavarri-Erasun
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
- Escuela Técnica de Ingeniería Agraria, Alimentaria, y de Biosistemas, Universidad Politécnica de Madrid, Avda. Puerta de Hierro, 2, 28040 Madrid, Spain
| | - Alejandro M. Armas
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
| | - César Poza-Carrión
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
| | - Luis M. Rubio
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
- Escuela Técnica de Ingeniería Agraria, Alimentaria, y de Biosistemas, Universidad Politécnica de Madrid, Avda. Puerta de Hierro, 2, 28040 Madrid, Spain
| |
Collapse
|
5
|
Han Q, Sun T, Zhang X, Li S, Zhu Y. Degradation of polyvinyl alcohol (PVA) in neutral conditions based on copper-manganese bimetallic catalyst. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:97990-98003. [PMID: 37603237 DOI: 10.1007/s11356-023-29366-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/12/2023] [Indexed: 08/22/2023]
Abstract
There have been many studies on the degradation of polyvinyl alcohol (PVA) by the Fenton-like method, but the narrow acid-base (pH) range, poor degradation effect, and time-consuming of the Fenton-like method limit its development. Therefore, to improve the shortcomings of the Fenton-like method, the study aimed to synthesize copper-manganese bimetal oxide loaded catalysts (MnCuO@γ-Al2O3) through the impregnation calcination method, and its potential to activate hydrogen peroxide (H2O2) for the degradation of PVA was evaluated. The X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer Emmett Teller (BET), energy dispersive spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS) characterizations revealed the chemical composition, structure and morphology of the prepared MnCuO@γ-Al2O3, furthermore the synergistic mechanism was proposed. Results indicated that copper and manganese could successfully attach to γ-Al2O3 and reduce the specific surface area of γ-Al2O3, promoting the transformation of multivalent metals and the generation of oxygen vacancies. In addition, comparative experiments demonstrated that the PVA removal efficiency was significantly improved at the catalyst calcination temperature of 500 °C, reaction temperature of 70 °C, H2O2 dosage of 125 [Formula: see text], and catalyst dosage of 625 [Formula: see text] and more than 96% of PVA was removed within 20 min in neutral conditions. Lastly, four catalyst cycle degradation experiments of PVA were carried out, and the degradation effect could reach more than 96% in a certain time.
Collapse
Affiliation(s)
- Qinghe Han
- School of Textile Science and Engineering, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Tongming Sun
- National Innovation Center of Advanced Dyeing & Finishing Technology, Tai'an, Shandong, 271000, People's Republic of China
| | - Xinyu Zhang
- National Innovation Center of Advanced Dyeing & Finishing Technology, Tai'an, Shandong, 271000, People's Republic of China
| | - Shen Li
- Sichuan Province Fiber Inspection Bureau, Chengdu, 610015, Sichuan, China
| | - Yanan Zhu
- School of Textile Science and Engineering, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| |
Collapse
|
6
|
Qiao L, Li X, Wei C, Li Z, Han S, Cheng D. A chemodynamic nanoenzyme with highly efficient Fenton reaction for cancer therapy. Biomed Mater 2023; 18:055024. [PMID: 37567189 DOI: 10.1088/1748-605x/acef87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 08/10/2023] [Indexed: 08/13/2023]
Abstract
Chemodynamic therapy (CDT) is a rising technology for cancer therapy by converting intracellular hydrogen peroxide (H2O2) into hydroxyl radical (•OH) via transition-metal-containing nanoparticles (NPs) catalysis reaction (i.e. Fenton reaction) to kill tumor cells. Highly efficient Fenton reaction and favorable delivery of the catalytic NPs 'nanoenzyme' are the key for successful treatment of cancer. In this work, we developed a novel nanoenzyme MnFe2O4@GFP forin vitroandin vivoantitumor therapy. A new MnFe2O4nanoparticle containing two transition-metal-element Fe and Mn was synthesized for enhanced Fenton reaction and used to co-deliver protein with high biocompatibility through post-modification with dopamine polymerization, green fluorescent protein adsorption, and PEG coating. The enrichment of H2O2and glutathione (GSH) in tumor tissue provided a favorable microenvironment forin situgeneration of toxic free radicals. Fe3+and GSH triggered a redox reaction to produce Fe2+, which in turn catalyzed H2O2into •OH, with the consumption of antioxidant GSH. By combining Fe3+with another catalyzer, the catalytic efficiency of the nanoenzyme were greatly improved. Consequently, the nanoenzyme showed efficient antitumor ability bothin vitroandin vivo. Thus, the multifunctional CDT nanoenzyme platform shows great promising for antitumor therapy through the combination of catalyzers Fe3+and Mn2+and codelivery of protein cargo.
Collapse
Affiliation(s)
- Lihong Qiao
- Key Laboratory for Polymeric Composite & Functional Materials of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
- Department of Obstetrics and Gynecology, Affiliated Dongguan Hospital, Southern Medical University, Dongguan, People's Republic of China
- Dongguan Key Laboratory of Major Diseases in Obstetrics and Gynecology, Dongguan, People's Republic of China
| | - Xiaoxia Li
- Key Laboratory for Polymeric Composite & Functional Materials of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Chuanqi Wei
- Key Laboratory for Polymeric Composite & Functional Materials of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Zhongjun Li
- Department of Obstetrics and Gynecology, Affiliated Dongguan Hospital, Southern Medical University, Dongguan, People's Republic of China
- Dongguan Key Laboratory of Major Diseases in Obstetrics and Gynecology, Dongguan, People's Republic of China
| | - Shisong Han
- Key Laboratory for Polymeric Composite & Functional Materials of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
- Zhuhai Institute of Translational Medicine, Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Zhuhai 519000, People's Republic of China
| | - Du Cheng
- Key Laboratory for Polymeric Composite & Functional Materials of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| |
Collapse
|
7
|
Teng P, Liu Y, Sun Z, Meng H, Han Y, Zhang X. Co-adsorption and Fenton-like oxidation in the efficient removal of methylene blue by MIL-88B@UiO-66 nanoflowers. Dalton Trans 2023. [PMID: 37439682 DOI: 10.1039/d3dt01413d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Development of binary MOF-on-MOF heterostructures is a research hotspot in MOFs chemistry due to the advantages elicited by a closely connected interface, which may endow more abundant functionality and even broader applications in interface chemistry. A MOF-on-MOF heterostructure was constructed by in situ growth of MIL-88B on the outer surface of UiO-66. The resultant MIL-88B@UiO-66 produced had an interesting flower-like morphology composed of MIL-88B (petal) on tetrahedral UiO-66 (core). The MIL-88B@UiO-66 heterostructure showed adsorption and Fenton-like oxidation abilities, with distinctly improved structural stability in aqueous solution compared with that of single MIL-88B. Methylene blue (MB) was selected as the target molecule to evaluate the adsorption and Fenton-like oxidation activities. The efficiency of total removal of MB was studied systematically under various operating conditions and the influencing factors were optimized. The kinetics of adsorption and catalytic oxidation were simulated to explore the interactions between MB and MIL-88B@UiO-66. The mechanisms of enhanced adsorption and Fenton-like oxidation were suggested. The cyclic removal performance and structural stability of MIL-88B@UiO-66 were also determined.
Collapse
Affiliation(s)
- Pingping Teng
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P. R. China.
| | - Ying Liu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P. R. China.
| | - Zhongqiao Sun
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P. R. China.
| | - Hao Meng
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P. R. China.
| | - Yide Han
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P. R. China.
| | - Xia Zhang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, P. R. China.
| |
Collapse
|
8
|
Tambe PK, Qsee HS, Bharati S. Mito-TEMPO mitigates 5-fluorouracil-induced intestinal injury via attenuating mitochondrial oxidative stress, inflammation, and apoptosis: an in vivo study. Inflammopharmacology 2023:10.1007/s10787-023-01261-6. [PMID: 37338659 DOI: 10.1007/s10787-023-01261-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 05/31/2023] [Indexed: 06/21/2023]
Abstract
BACKGROUND Recent evidences highlight role of mitochondria in the development of 5-fluorouracil (5-FU)-induced intestinal toxicity. Mitochondria-targeted antioxidants are well-known for their protective effects in mitochondrial oxidative stress- mediated diseases. In the present study, we investigated protective effect of Mito-TEMPO in 5-FU-induced intestinal toxicity. METHODS Mito-TEMPO (0.1 mg/kg b.w.) was administered intraperitoneally to male BALB/c mice for 7 days, followed by co-administration of 5-FU for next 4 days (intraperitoneal 12 mg/kg b.w.). Protective effect of Mito-TEMPO on intestinal toxicity was assessed in terms of histopathological alterations, modulation in inflammatory markers, apoptotic cell death, expression of 8-OhDG, mitochondrial functional status and oxidative stress. RESULTS 5-FU administered animals showed altered intestinal histoarchitecture wherein a shortening and atrophy of the villi was observed. The crypts were disorganized and inflammatory cell infiltration was noted. Mito-TEMPO pre-protected animals demonstrated improved histoarchitecture with normalization of villus height, better organized crypts and reduced inflammatory cell infiltration. The inflammatory markers and myeloperoxidase activity were normalized in mito-TEMPO protected group. A significant reduction in intestinal apoptotic cell death and expression of 8-OhDG was also observed in mito-TEMPO group as compared to 5-FU group. Further, mtROS, mtLPO and mitochondrial antioxidant defense status were improved by mito-TEMPO. CONCLUSION Mito-TEMPO exerted significant protective effect against 5-FU-induced intestinal toxicity. Therefore, it may be used as an adjuvant in 5-FU chemotherapy.
Collapse
Affiliation(s)
- Prasad Kisan Tambe
- Department of Nuclear Medicine, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - H S Qsee
- Department of Nuclear Medicine, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Sanjay Bharati
- Department of Nuclear Medicine, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Karnataka, India.
| |
Collapse
|
9
|
Dong C, Song C, He Z, Song Q, Song T, Liu J, Xiong Y, Su X, Zhou J, Yang S, Liao W. Protective efficacy of Schizandrin B on ameliorating nephrolithiasis via regulating GSK3β/Nrf2 signaling-mediated ferroptosis in vivo and in vitro. Int Immunopharmacol 2023; 117:110042. [PMID: 36940552 DOI: 10.1016/j.intimp.2023.110042] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/25/2023] [Accepted: 03/12/2023] [Indexed: 03/23/2023]
Abstract
Schizandrin B (SchB) protects against oxidative, inflammatory, and ferroptotic injury. Oxidative stress and inflammation are indispensably involved in nephrolithiasis and ferroptosis also plays an important role in stone formation. It is unclear whether SchB can ameliorate nephrolithiasis; its underlying mechanism is also unknown. First, we employed bioinformatics to investigate the mechanisms of nephrolithiasis. To evaluate the efficacy of SchB, HK-2 cell models of oxalate-induced damage, Erastin-induced ferroptosis, and the Sprague Dawley rat model of Ethylene Glycol-induced nephrolithiasis were established. Then, Nrf2 siRNA and GSK3β overexpression plasmids were transfected into HK-2 cells to elucidate the role of SchB in regulating oxidative stress-mediated ferroptosis. In our study, oxidative stress and inflammation were strongly associated with nephrolithiasis. Administration of SchB attenuated the cell viability, dysfunctional mitochondria, oxidative stress and inflammatory response in vitro and alleviated renal injury and crystal deposition in vivo. SchB treatment also reduced the levels of cellular Fe2+ accumulation, lipid peroxidation and MDA, and regulated ferroptosis-related proteins, including XCT, GPX4, FTH1 and CD71, in Erastin-induced or oxalate-induced HK-2 cells. Mechanistically, SchB facilitated Nrf2 nuclear translocation, and silencing Nrf2 or overexpressing GSK3β worsened oxalate-induced oxidative injury and abolished the beneficial effect of SchB against ferroptosis in vitro. To summarize, SchB could alleviate nephrolithiasis by positively regulating GSK3β/Nrf2 signaling-mediated ferroptosis.
Collapse
Affiliation(s)
- Caitao Dong
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Chao Song
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Ziqi He
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Qianlin Song
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Tianbao Song
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Junwei Liu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Yunhe Xiong
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Xiaozhe Su
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Jiawei Zhou
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China
| | - Sixing Yang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China.
| | - Wenbiao Liao
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, People's Republic of China.
| |
Collapse
|
10
|
Initial Steps in the Reaction of H2O2 with Fe2+ and Fe3+ Ions: Inconsistency in the Free Radical Theory. REACTIONS 2023. [DOI: 10.3390/reactions4010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
Consideration of the changes in free energy shows that the assumed initial steps in reactions of H2O2 with Fe2+ and Fe3+ in the free radical theory are not consistent. The free radical theory is unable to account for the Fe3+-initiated decomposition of H2O2 or for oxidations by it. In reactions with Fe2+ ions at high [H2O2], where O2 evolution reaches a limit, such limit is not foreseen by the free radical model. At lower [H2O2], because of a disallowed substitution in the equation used, the interpretation is not valid. It appears, therefore, that free radicals derived from H2O2 do not provide a suitable basis for constructing models for these reactions. Non-radical models are more successful in interpreting experimental results.
Collapse
|
11
|
The Boundary between Two Modes of Gas Evolution: Oscillatory (H2 and O2) and Conventional Redox (O2 Only), in the Hydrocarbon/H2O2/Cu(II)/CH3CN System. HYDROGEN 2023. [DOI: 10.3390/hydrogen4010006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
During the oxidation of hydrocarbons using hydrogen peroxide solutions, the evolution of gaseous oxygen is a side and undesirable process, in which the consumption of the oxidizer is not associated with the formation of target products. Therefore, no attention is paid to the systematic study of the chemical composition of the gas and the mechanisms of its formation. Filling this gap, the authors discovered a number of new, previously unidentified, interesting facts concerning both gas evolution and the oxidation of hydrocarbons. In a 33% H2O2/Cu2Cl4·2DMG/CH3CN system, where DMG is dimethylglyoxime (Butane-2,3-dione dioxime), and is at 50 °C, evidence of significant evolution of gaseous hydrogen, along with the evolution of gaseous oxygen was found. In the authors’ opinion, which requires additional verification, the ratio of gaseous hydrogen and oxygen in the discussed catalytic system can reach up to 1:1. The conditions in which only gaseous oxygen is formed are selected. Using a number of oxidizable hydrocarbons with the first adiabatic ionization potentials (AIPs) of a wide range of values, it was found that the first stage of such a process of evolving only gaseous oxygen was the single electron transfer from hydrogen peroxide molecules to trinuclear copper clusters with the formation, respectively, of hydrogen peroxide radical cations H2O2•+ and radical anions Cu3Cl5•− (AIP = 5 eV). When the conditions for the implementation of such a single electron transfer mechanism are exhausted, the channel of decomposition of hydrogen peroxide molecules into gaseous hydrogen and oxygen is switched on, which is accompanied by the transition of the system to an oscillatory mode of gas evolution. In some cases, the formation of additional amounts of gaseous products is provided by the catalytically activated decomposition of water molecules into hydrogen and oxygen after the complete consumption of hydrogen peroxide molecules in the reaction of gaseous oxygen evolution. The adiabatic electron affinity of various forms of copper molecules involved in chemical processes is calculated by the density functional theory method.
Collapse
|
12
|
Masud MAA, Kim DG, Shin WS. Degradation of phenol using Fe(II)-activated CaO 2: effect of ball-milled activated carbon (AC BM) addition. ENVIRONMENTAL RESEARCH 2022; 214:113882. [PMID: 35931187 DOI: 10.1016/j.envres.2022.113882] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/14/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
In-situ chemical oxidation (ISCO) based on peroxide activation is one of the most promising technologies for removing organic contaminants from natural groundwater (NGW). However, use of the most common form of hydrogen peroxide (H2O2) is limited owing to its significantly rapid reaction rate and heat generation. Therefore, in the present study, the activation of calcium peroxide (CaO2), a slow H2O2 releasing agent, by Fe(II) was proposed (CaO2/Fe(II)), and the phenol degradation mechanisms and feasibility of NGW remediation were investigated. The optimum molar ratio of [phenol]/[CaO2]/[Fe(II)] (phenol = 0.5 mM) was 1/10/10, resulting in 87.0-92.5% phenol removal within 120 min under a broad initial pH range of 3-9. HCO3-, PO43-, and humic acid significantly inhibited degradation, whereas the effects of Cl-, NO3-, and SO42- were negligible. Reactive oxygen species (ROS) were identified based on the results of phenol degradation in the presence of scavengers and electron spin resonance (ESR) spectroscopy, which demonstrated that 1O2 played the dominant role, supported by •OH, in CaO2/Fe(II). Phenol removal in NGW (67.81%) was less than that in distilled and deionized water (DIW, 92.5%) at a [phenol]/[CaO2]/[Fe(II)] ratio of 1/10/10. However, phenol removal was significantly improved (∼100%) by increasing the CaO2 and Fe(II) doses to 1/20/20-40. Furthermore, when 125-250 mg L-1 of ball-milled activated carbon (ACBM) was added (CaO2/Fe(II)-ACBM), phenol removal was enhanced from 67.81% to 90.94-100% in the NGW. CaO2/Fe(II)-ACBM exhibited higher total organic carbon (TOC) removal than CaO2/Fe(II). In addition, no notable by-products were detected using CaO2/Fe(II)-ACBM, whereas the polymerisation products of hydroxylated and/or ring-cleaved compounds, that is, aconitic acid, gallocatechin, and 10-hydroxyaloin, were found in the reaction with CaO2/Fe(II). These results strongly suggest that CaO2/Fe(II)-ACBM is highly promising for groundwater remediation, minimizing degradation byproducts and the adverse effects caused by the NGW components.
Collapse
Affiliation(s)
- Md Abdullah Al Masud
- School of Architecture, Civil, Environmental and Energy Engineering, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Do Gun Kim
- Department of Environmental Engineering, Sunchon National University, Suncheon, Jeollanam-do, 57922, Republic of Korea.
| | - Won Sik Shin
- School of Architecture, Civil, Environmental and Energy Engineering, Kyungpook National University, Daegu, 41566, Republic of Korea.
| |
Collapse
|
13
|
Abe C, Miyazawa T, Miyazawa T. Current Use of Fenton Reaction in Drugs and Food. Molecules 2022; 27:molecules27175451. [PMID: 36080218 PMCID: PMC9457891 DOI: 10.3390/molecules27175451] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
Iron is the most abundant mineral in the human body and plays essential roles in sustaining life, such as the transport of oxygen to systemic organs. The Fenton reaction is the reaction between iron and hydrogen peroxide, generating hydroxyl radical, which is highly reactive and highly toxic to living cells. “Ferroptosis”, a programmed cell death in which the Fenton reaction is closely involved, has recently received much attention. Furthermore, various applications of the Fenton reaction have been reported in the medical and nutritional fields, such as cancer treatment or sterilization. Here, this review summarizes the recent growing interest in the usefulness of iron and its biological relevance through basic and practical information of the Fenton reaction and recent reports.
Collapse
|
14
|
Kawabata T. Iron-Induced Oxidative Stress in Human Diseases. Cells 2022; 11:cells11142152. [PMID: 35883594 PMCID: PMC9324531 DOI: 10.3390/cells11142152] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/30/2022] [Accepted: 07/04/2022] [Indexed: 11/16/2022] Open
Abstract
Iron is responsible for the regulation of several cell functions. However, iron ions are catalytic and dangerous for cells, so the cells sequester such redox-active irons in the transport and storage proteins. In systemic iron overload and local pathological conditions, redox-active iron increases in the human body and induces oxidative stress through the formation of reactive oxygen species. Non-transferrin bound iron is a candidate for the redox-active iron in extracellular space. Cells take iron by the uptake machinery such as transferrin receptor and divalent metal transporter 1. These irons are delivered to places where they are needed by poly(rC)-binding proteins 1/2 and excess irons are stored in ferritin or released out of the cell by ferroportin 1. We can imagine transit iron pool in the cell from iron import to the export. Since the iron in the transit pool is another candidate for the redox-active iron, the size of the pool may be kept minimally. When a large amount of iron enters cells and overflows the capacity of iron binding proteins, the iron behaves as a redox-active iron in the cell. This review focuses on redox-active iron in extracellular and intracellular spaces through a biophysical and chemical point of view.
Collapse
Affiliation(s)
- Teruyuki Kawabata
- Department of Applied Physics, Postgraduate School of Science, Okayama University of Science, Okayama 700-0005, Japan
| |
Collapse
|