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Sun T, Guo X, Zhong R, Wang C, Liu H, Li H, Ma L, Guan J, You C, Tian M. Interactions of Alginate-Deferoxamine Conjugates With Blood Components and Their Antioxidation in the Hemoglobin Oxidation Model. Front Bioeng Biotechnol 2020; 8:53. [PMID: 32117933 PMCID: PMC7026261 DOI: 10.3389/fbioe.2020.00053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 01/22/2020] [Indexed: 02/05/2023] Open
Abstract
While deferoxamine (DFO) has long been used as an FDA-approved iron chelator, its proangiogenesis ability attracts increasing number of research interests. To address its drawbacks such as short plasma half-life and toxicity, polymeric conjugated strategy has been proposed and shown superiority. Owing to intravenous injection and application in blood-related conditions, however, the blood interactions and antioxidation of the DFO-conjugates and the mechanisms underlying these outcomes remain to be elucidated. In this regard, incubating with three different molecular-weight (MW) alginate-DFO conjugates (ADs) red blood cells (RBCs), coagulation system, complement and platelet were investigated. To prove the antioxidant activity of ADs, we used hemoglobin oxidation model in vitro. ADs did not cause RBCs hemolysis while reversible aggregation and normal deformability ability were observed. However, the coagulation time, particularly APTT and TT, were significantly prolonged in a dose-dependent manner, and fibrinogen was dramatically decreased, suggesting ADs could dominantly inhibit the intrinsic pathways in the process of coagulation. The dose-dependent anticoagulation might be related with the functional groups along the alginate chains. The complements, C3a and C5a, were activated by ADs in a dose-dependent manner through alternative pathway. For platelet, ADs slightly suppressed the activation and aggregation at low concentration. Based on above results, the cross-talking among coagulation, complement and platelet induced by ADs was proposed. The antioxidation of ADs through iron chelation was proved and the antioxidant activity was shown in a MW-dependent manner.
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Affiliation(s)
- Tong Sun
- Neurosurgery Research Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xi Guo
- Neurosurgery Research Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Rui Zhong
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Chengwei Wang
- Neurosurgery Research Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hao Liu
- Neurosurgery Research Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Hao Li
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Lu Ma
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Junwen Guan
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Chao You
- Neurosurgery Research Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
- West China Brain Research Centre, West China Hospital, Sichuan University, Chengdu, China
| | - Meng Tian
- Neurosurgery Research Laboratory, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
- West China Brain Research Centre, West China Hospital, Sichuan University, Chengdu, China
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Chen G, Chang TMS. Dual effects include antioxidant and pro-oxidation of ascorbic acid on the redox properties of bovine hemoglobin. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:983-992. [PMID: 29961345 DOI: 10.1080/21691401.2018.1476374] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The oxidation reactions have become the main obstacle of development of bovine hemoglobin-derivates products. Herein, the effects of vitamin C (Vc), a easily available natural antioxidant reagent, on the redox reaction of bovine hemoglobin were systematically investigated through methemoglobin (MetHb) formation and spectrophotometric analysis and oxygen affinity monitoring of hemoglobin. The results showed that Vc presented antioxidant effects in the initial stage of reaction and then could accelerated the MetHb content increasing by production of hydrogen peroxide, which can be indirectly characterized by the formation of choleglobin in the following side reactions. The dual effects of Vc include antioxidant and pro-oxidant effects could be confirmed by the spectrophotometric spectrums analysis in this research. The results of this research supplied the novel insight into understanding of redox properties of bovine hemoglobin and also revealed the main obstacle in exploration of Vc application in the future development of bovine hemoglobin-derivates products.
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Affiliation(s)
- Gang Chen
- a Institute of Blood Transfusion, Chinese Academy of Medical Science & Peking Union Medical College , Chengdu City , Sichuan Province , PR China.,b Artificial Cells and Organs Research Centre, Department of Physiology, Medicine and Biomedical Engineering, Faculty of Medicine , McGill University , Montreal , QC , Canada
| | - T M S Chang
- b Artificial Cells and Organs Research Centre, Department of Physiology, Medicine and Biomedical Engineering, Faculty of Medicine , McGill University , Montreal , QC , Canada
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Ali SN, Mahmood R. Sodium chlorite increases production of reactive oxygen species that impair the antioxidant system and cause morphological changes in human erythrocytes. ENVIRONMENTAL TOXICOLOGY 2017; 32:1343-1353. [PMID: 27478981 DOI: 10.1002/tox.22328] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 07/11/2016] [Accepted: 07/17/2016] [Indexed: 06/06/2023]
Abstract
Sodium chlorite (NaClO2 ) is used in the production of chlorine dioxide for bleaching and stripping of textiles, pulp, and paper. It is also used as disinfectant in municipal water treatment and as a component in therapeutic rinses and gels. The effect of NaClO2 on human erythrocytes has been studied under in vitro conditions. Incubation of 5% suspension of erythrocytes with NaClO2 (0.1-2.0 mM) at 37°C for 30 min resulted in marked cell lysis (1.2-3.8 fold) and increased their osmotic fragility. Several parameters were assayed in cell lysates prepared from NaClO2 -treated and -untreated (control) erythrocytes. Compared to controls, exposure to NaClO2 caused significant increase in protein oxidation (1.1-8.07 fold), lipid peroxidation (1.08-4.95 fold) with decrease in total sulfhydryl (-5 to -61%), and glutathione levels (-7 to -86%). Methemoglobin content was tremendously increased, by 5-52 fold when compared to control, while methemoglobin reductase activity decreased (-17 to -93%) upon NaClO2 treatment. NaClO2 enhanced the generation of reactive oxygen species by 3-21 fold and lowered the metal reducing and free radical quenching ability of erythrocytes. It also caused an increase in nitric oxide levels (2.7-15.4 fold) showing generation of nitrosative stress too. The activities of major antioxidant and membrane bound enzymes were significantly altered. Gross morphological changes, from discocytes to echinocytes, were seen in NaClO2 -treated erythrocytes under electron microscope. These results show that NaClO2 induces oxidative stress in human erythrocytes, damages the membrane, and impairs the cellular antioxidant defence system. This oxidative damage can shorten the life span of erythrocytes in blood resulting in red cell senescence. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 1343-1353, 2017.
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Affiliation(s)
- Shaikh Nisar Ali
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| | - Riaz Mahmood
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
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Flemmig J, Schlorke D, Kühne FW, Arnhold J. Inhibition of the heme-induced hemolysis of red blood cells by the chlorite-based drug WF10. Free Radic Res 2016; 50:1386-1395. [DOI: 10.1080/10715762.2016.1252838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- J. Flemmig
- Institute for Medical Physics and Biophysics, University of Leipzig, Leipzig, Germany
| | - D. Schlorke
- Institute for Medical Physics and Biophysics, University of Leipzig, Leipzig, Germany
| | - F.-W. Kühne
- OXO Chemie (Thailand) Co., Ltd, Bangkok, Thailand
| | - J. Arnhold
- Institute for Medical Physics and Biophysics, University of Leipzig, Leipzig, Germany
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Maraprygsavan P, Mongkolsuk J, Arnhold J, Kuehne FW. The chlorite-based drug WF10 constantly reduces hemoglobin A1c values and improves glucose control in diabetes patients with severe foot syndrome. JOURNAL OF CLINICAL AND TRANSLATIONAL ENDOCRINOLOGY 2016; 4:53-58. [PMID: 29159131 PMCID: PMC5680448 DOI: 10.1016/j.jcte.2016.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 05/02/2016] [Indexed: 12/22/2022]
Abstract
The chlorite-based drug WF10 improved healing of foot wounds in diabetic patients. Infusion with WF10 markedly reduced HbA1c values in patients with diabetic foot syndrome. After administration of WF10 HbA1c values remained low over at least 8 to 12 weeks. The chlorite component of WF10 is known to inactivate efficiently cytotoxic hemoglobin forms. This treatment prevented below knee amputation in patients with diabetic foot syndrome.
Aims The intravenous application of the chlorite-based drug solution WF10 is known to improve wound healing in patients with diabetic foot syndrome. In this retrospective study, we addressed the question, which effects are caused by this drug in patients with diabetic foot ulcers on the hemoglobin A1c value. Methods Patients received five consecutive daily infusions of WF10. Three patients received a second cycle of WF10, and one patient a third cycle. Results On a group of twelve patients with diabetic foot syndrome, WF10 gradually reduced the HbA1c values from a high-risk range (9.1 ± 1.6% (76 ± 13 mmol/mol)) into a low-risk range in all patients but one. These values remain low over at least 8 to 12 weeks after the administration of WF10. This drug improved also considerably wound healing processes in eleven patients. Conclusions The chlorite component of WF10 is known to inactivate efficiently free cytotoxic hemoglobin forms that might accumulate in peripheral blood after hemolysis and induces the removal of pre-damaged red blood cells from circulation. By these mechanisms WF10 diminished toxic effects of hemolysis, improved microcirculation and glucose consumption in affected tissues, and prevented, thus, below knee amputation.
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Affiliation(s)
| | | | - Juergen Arnhold
- Institute of Medical Physics and Biophysics, Medical Faculty, University of Leipzig, Leipzig, Germany
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