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Sekyonda Z, An R, Goreke U, Man Y, Monchamp K, Bode A, Zhang Q, El-Gammal Y, Kityo C, Kalfa TA, Akkus O, Gurkan UA. Rapid measurement of hemoglobin-oxygen dissociation by leveraging Bohr effect and Soret band bathochromic shift. Analyst 2024; 149:2561-2572. [PMID: 38501195 PMCID: PMC11056771 DOI: 10.1039/d3an02071a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/24/2024] [Indexed: 03/20/2024]
Abstract
Oxygen (O2) binds to hemoglobin (Hb) in the lungs and is then released (dissociated) in the tissues. The Bohr effect is a physiological mechanism that governs the affinity of Hb for O2 based on pH, where a lower pH results in a lower Hb-O2 affinity and higher Hb-O2 dissociation. Hb-O2 affinity and dissociation are crucial for maintaining aerobic metabolism in cells and tissues. Despite its vital role in human physiology, Hb-O2 dissociation measurement is underutilized in basic research and in clinical laboratories, primarily due to the technical complexity and limited throughput of existing methods. We present a rapid Hb-O2 dissociation measurement approach by leveraging the Bohr effect and detecting the optical shift in the Soret band that corresponds to the light absorption by the heme group in Hb. This new method reduces Hb-O2 dissociation measurement time from hours to minutes. We show that Hb deoxygenation can be accelerated chemically at the optimal pH of 6.9. We show that time and pH-controlled deoxygenation of Hb results in rapid and distinct conformational changes in its tertiary structure. These molecular conformational changes are manifested as significant, detectable shifts in Hb's optical absorption spectrum, particularly in the characteristic Soret band (414 nm). We extensively validated the method by testing human blood samples containing normal Hb and Hb variants. We show that rapid Hb-O2 dissociation can be used to screen for and detect Hb-O2 affinity disorders and to evaluate the function and efficacy of Hb-modifying therapies. The ubiquity of optical absorption spectrophotometers positions this approach as an accessible, rapid, and accurate Hb-O2 dissociation measurement method for basic research and clinical use. We anticipate this method's broad adoption will democratize the diagnosis and prognosis of Hb disorders, such as sickle cell disease. Further, this method has the potential to transform the research and development of new targeted and genome-editing-based therapies that aim to modify or improve Hb-O2 affinity.
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Affiliation(s)
- Zoe Sekyonda
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Ran An
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Glennan Building 616B, Cleveland, OH, 44106, USA.
| | - Utku Goreke
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Glennan Building 616B, Cleveland, OH, 44106, USA.
| | - Yuncheng Man
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Glennan Building 616B, Cleveland, OH, 44106, USA.
| | - Karamoja Monchamp
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Glennan Building 616B, Cleveland, OH, 44106, USA.
- Division of Hematology and Oncology, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Allison Bode
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Glennan Building 616B, Cleveland, OH, 44106, USA.
- Division of Hematology and Oncology, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Qiaochu Zhang
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Glennan Building 616B, Cleveland, OH, 44106, USA.
| | - Yasmin El-Gammal
- Division of Hematology, Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Cissy Kityo
- The Joint Clinical Research Center, Kampala, Uganda
| | - Theodosia A Kalfa
- Division of Hematology, Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Ozan Akkus
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Glennan Building 616B, Cleveland, OH, 44106, USA.
- Department of Orthopedics, Case Western Reserve University, Cleveland, OH, USA
| | - Umut A Gurkan
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave., Glennan Building 616B, Cleveland, OH, 44106, USA.
- Department of Orthopedics, Case Western Reserve University, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
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Norberg AE, Bakirci E, Lim KS, Dalton PD, Woodfield TBF, Lindberg GCJ. Bioassembly of hemoglobin-loaded photopolymerizable spheroids alleviates hypoxia-induced cell death. Biofabrication 2024; 16:025026. [PMID: 38373325 DOI: 10.1088/1758-5090/ad2a7d] [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: 09/20/2023] [Accepted: 02/19/2024] [Indexed: 02/21/2024]
Abstract
The delivery of oxygen within tissue engineered constructs is essential for cell survivability; however, achieving this within larger biofabricated constructs poses a significant challenge. Efforts to overcome this limitation often involve the delivery of synthetic oxygen generating compounds. The application of some of these compounds is problematic for the biofabrication of living tissues due to inherent issues such as cytotoxicity, hyperoxia and limited structural stability due to oxygen inhibition of radical-based crosslinking processes. This study aims to develop an oxygen delivering system relying on natural-derived components which are cytocompatible, allow for photopolymerization and advanced biofabrication processes, and improve cell survivability under hypoxia (1% O2). We explore the binding of human hemoglobin (Hb) as a natural oxygen deposit within photopolymerizable allylated gelatin (GelAGE) hydrogels through the spontaneous complex formation of Hb with negatively charged biomolecules (heparin, hyaluronic acid, and bovine serum albumin). We systematically study the effect of biomolecule inclusion on cytotoxicity, hydrogel network properties, Hb incorporation efficiency, oxygen carrying capacity, cell viability, and compatibility with 3D-bioassembly processes within melt electrowritten (MEW) scaffolds. All biomolecules were successfully incorporated within GelAGE hydrogels, displaying controllable mechanical properties and cytocompatibility. Results demonstrated efficient and tailorable Hb incorporation within GelAGE-Heparin hydrogels. The developed system was compatible with microfluidics and photopolymerization processes, allowing for the production of GelAGE-Heparin-Hb spheres. Hb-loaded spheres were assembled into MEW polycaprolactone scaffolds, significantly increasing the local oxygen levels. Ultimately, cells within Hb-loaded constructs demonstrated good cell survivability under hypoxia. Taken together, we successfully developed a hydrogel system that retains Hb as a natural oxygen deposit post-photopolymerization, protecting Hb from free-radical oxidation while remaining compatible with biofabrication of large constructs. The developed GelAGE-Heparin-Hb system allows for physoxic oxygen delivery and thus possesses a vast potential for use across broad tissue engineering and biofabrication strategies to help eliminate cell death due to hypoxia.
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Affiliation(s)
- Axel E Norberg
- Dept of Orthopaedic Surgery, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch, New Zealand
| | - Ezgi Bakirci
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, United States of America
| | - Khoon S Lim
- Dept of Orthopaedic Surgery, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch, New Zealand
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Paul D Dalton
- Department of Bioengineering, Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, OR, United States of America
| | - Tim B F Woodfield
- Dept of Orthopaedic Surgery, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch, New Zealand
| | - Gabriella C J Lindberg
- Dept of Orthopaedic Surgery, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch, New Zealand
- Department of Bioengineering, Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, OR, United States of America
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Mohammadpour Z, Askari E, Shokati F, Hoseini HS, Kamankesh M, Zare Y, Rhee KY. Synthesis of Fe-Doped Peroxidase Mimetic Nanozymes from Natural Hemoglobin for Colorimetric Biosensing and In Vitro Anticancer Effects. BIOSENSORS 2023; 13:583. [PMID: 37366948 DOI: 10.3390/bios13060583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/22/2023] [Accepted: 05/24/2023] [Indexed: 06/28/2023]
Abstract
Despite their efficiency and specificity, the instability of natural enzymes in harsh conditions has inspired researchers to replace them with nanomaterials. In the present study, extracted hemoglobin from blood biowastes was hydrothermally converted to catalytically active carbon nanoparticles (BDNPs). Their application as nanozymes for the colorimetric biosensing of H2O2 and glucose and selective cancer cell-killing ability was demonstrated. Particles that were prepared at 100 °C (BDNP-100) showed the highest peroxidase mimetic activity, with Michaelis-Menten constants (Km) of 11.8 mM and 0.121 mM and maximum reaction rates (Vmax) of 8.56 × 10-8 mol L-1 s-1 and 0.538 × 10-8 mol L-1 s-1, for H2O2 and TMB, respectively. The cascade catalytic reactions, catalyzed by glucose oxidase and BDNP-100, served as the basis for the sensitive and selective colorimetric glucose determination. A linear range of 50-700 µM, a response time of 4 min, a limit of detection (3σ/N) of 40 µM, and a limit of quantification (10σ/N) of 134 µM was achieved. In addition, the reactive oxygen species (ROS)-generating ability of BDNP-100 was employed for evaluating its potential in cancer therapy. Human breast cancer cells (MCF-7), in the forms of monolayer cell cultures and 3D spheroids, were studied by MTT, apoptosis, and ROS assays. The in vitro cellular experiments showed dose-dependent cytotoxicity of BDNP-100 toward MCF-7 cells in the presence of 50 µM of exogenous H2O2. However, no obvious damage was induced to normal cells in the same experimental conditions, verifying the selective cancer cell-killing ability of BDNP-100.
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Affiliation(s)
- Zahra Mohammadpour
- Biomaterials and Tissue Engineering Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1517964311, Iran
| | - Esfandyar Askari
- Biomaterials and Tissue Engineering Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1517964311, Iran
| | - Farhad Shokati
- Biomaterials and Tissue Engineering Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1517964311, Iran
| | - Hosna Sadat Hoseini
- Biomaterials and Tissue Engineering Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1517964311, Iran
| | - Mojtaba Kamankesh
- Biomaterials and Tissue Engineering Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1517964311, Iran
| | - Yasser Zare
- Biomaterials and Tissue Engineering Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1517964311, Iran
| | - Kyong Yop Rhee
- Department of Mechanical Engineering (BK21 Four), College of Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
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De Figueiredo I, Bartenlian B, Van der Rest G, Pallandre A, Halgand F. Proteomics Methodologies: The Search of Protein Biomarkers Using Microfluidic Systems Coupled to Mass Spectrometry. Proteomes 2023; 11:proteomes11020019. [PMID: 37218924 DOI: 10.3390/proteomes11020019] [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: 03/23/2023] [Revised: 04/29/2023] [Accepted: 05/07/2023] [Indexed: 05/24/2023] Open
Abstract
Protein biomarkers have been the subject of intensive studies as a target for disease diagnostics and monitoring. Indeed, biomarkers have been extensively used for personalized medicine. In biological samples, these biomarkers are most often present in low concentrations masked by a biologically complex proteome (e.g., blood) making their detection difficult. This complexity is further increased by the needs to detect proteoforms and proteome complexity such as the dynamic range of compound concentrations. The development of techniques that simultaneously pre-concentrate and identify low-abundance biomarkers in these proteomes constitutes an avant-garde approach to the early detection of pathologies. Chromatographic-based methods are widely used for protein separation, but these methods are not adapted for biomarker discovery, as they require complex sample handling due to the low biomarker concentration. Therefore, microfluidics devices have emerged as a technology to overcome these shortcomings. In terms of detection, mass spectrometry (MS) is the standard analytical tool given its high sensitivity and specificity. However, for MS, the biomarker must be introduced as pure as possible in order to avoid chemical noise and improve sensitivity. As a result, microfluidics coupled with MS has become increasingly popular in the field of biomarker discovery. This review will show the different approaches to protein enrichment using miniaturized devices and the importance of their coupling with MS.
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Affiliation(s)
- Isabel De Figueiredo
- Institut de Chimie Physique, Université Paris Saclay, Avenue Jean Perrin, F91400 Orsay, France
| | - Bernard Bartenlian
- Centre des Nanosciences et Nanotechnologies, Université Paris Saclay, 10 Boulevard Thomas Gobert, F91120 Palaiseau, France
| | - Guillaume Van der Rest
- Institut de Chimie Physique, Université Paris Saclay, Avenue Jean Perrin, F91400 Orsay, France
| | - Antoine Pallandre
- Institut de Chimie Physique, Université Paris Saclay, Avenue Jean Perrin, F91400 Orsay, France
| | - Frédéric Halgand
- Institut de Chimie Physique, Université Paris Saclay, Avenue Jean Perrin, F91400 Orsay, France
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5
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Qi Z, Shi J, Song Y, Deng Y. A novel micellar carrier to reverse multidrug resistance of tumours: TPGS derivatives with end-grafted cholesterol. J Drug Target 2023; 31:537-553. [PMID: 37092957 DOI: 10.1080/1061186x.2023.2205614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
D-α-tocopherol polyethylene glycol succinate (TPGS) has good biocompatibility, low immunogenicity, prolonged circulation time, and it can reverse multidrug resistance of tumours. However, the micelle concentration (CMC) of TPGS is too high (0.2 mg/mL) to develop the formulation of the micelle. In this study, TPGS was modified with cholesterol to obtain a new carrier material, TPGS-CHMC. The CMC of TPGS-CHMC was 2 μg/mL, which was extremely lower than that of TPGS. Docetaxel (DTX)-loaded TPGS-CHMC micelles (TPGS-CHMC/DTX) exhibited an average size of approximately 13 nm, a zeta potential of approximately -4.66 mV, and high encapsulation efficiency (99.2 ± 0.6%). TPGS-CHMC reduced mitochondrial membrane potential and cell membrane fluidity in paclitaxel-resistant ovarian cancer cells (A2780/T). In vivo, DiR-loaded TPGS-CHMC micelles were selectively distributed in A2780/T tumour-bearing nude mice. In A2780/T tumour-bearing nude mice, TPGS-CHMC/DTX micelles displayed significantly higher anti-tumour activity and less toxicity than the free DTX solution. In summary, TPGS-CHMC has various advantages, and provides a new option for developing functional polymeric micelles.
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Affiliation(s)
- Zhaowei Qi
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Jia Shi
- The first affiliated hospital of Jinzhou medical university, Jinzhou, Liaoning, China
| | - Yanzhi Song
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Yihui Deng
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
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6
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Design, Synthesis, and Antisickling Investigation of a Nitric Oxide-Releasing Prodrug of 5HMF for the Treatment of Sickle Cell Disease. Biomolecules 2022; 12:biom12050696. [PMID: 35625623 PMCID: PMC9138457 DOI: 10.3390/biom12050696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/05/2022] [Accepted: 05/10/2022] [Indexed: 02/02/2023] Open
Abstract
5-hydroxyfurfural (5HMF), an allosteric effector of hemoglobin (Hb) with an ability to increase Hb affinity for oxygen has been studied extensively for its antisickling effect in vitro and in vivo, and in humans for the treatment of sickle cell disease (SCD). One of the downstream pathophysiologies of SCD is nitric oxide (NO) deficiency, therefore increasing NO (bio)availability is known to mitigate the severity of SCD symptoms. We report the synthesis of an NO-releasing prodrug of 5HMF (5HMF-NO), which in vivo, is expected to be bio-transformed into 5HMF and NO, with concomitant therapeutic activities. In vitro studies showed that when incubated with whole blood, 5HMF-NO releases NO, as anticipated. When incubated with sickle blood, 5HMF-NO formed Schiff base adduct with Hb, increased Hb affinity for oxygen, and prevented hypoxia-induced erythrocyte sickling, which at 1 mM concentration were 16%, 10% and 27%, respectively, compared to 21%, 18% and 21% for 5HMF. Crystal structures of 5HMF-NO with Hb showed 5HMF-NO bound to unliganded (deoxygenated) Hb, while the hydrolyzed product, 5HMF bound to liganded (carbonmonoxy-ligated) Hb. Our findings from this proof-of-concept study suggest that the incorporation of NO donor group to 5HMF and analogous molecules could be a novel beneficial strategy to treat SCD and warrants further detailed in vivo studies.
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Hallez F, Combès A, Desoubries C, Bossée A, Pichon V. Analysis of long-lived sulfur mustard-human hemoglobin adducts in blood samples by red blood cells lysis and on-line coupling of digestion on an immobilized-trypsin reactor with liquid chromatography-tandem mass spectrometry. J Chromatogr A 2022; 1665:462830. [DOI: 10.1016/j.chroma.2022.462830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 01/13/2022] [Indexed: 12/01/2022]
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8
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Liu J, Ghanizadeh H, Li X, An L, Qiu Y, Zhang Y, Chen X, Wang A. Facile synthesis of core\shell Fe 3O 4@mSiO 2(Hb) and its application for organic wastewater treatment. ENVIRONMENTAL RESEARCH 2022; 203:111796. [PMID: 34339698 DOI: 10.1016/j.envres.2021.111796] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 07/27/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
Treatment of organic wastewater is a challenging task. Biological techniques using biocatalysts have shown their benefits in organic wastewater treatment. In this research, a novel biocatalyst was developed by encapsulation of Fe3O4 microspheres and haemoglobin (Hb) with mesoporous silica, named Fe3O4@mSiO2(Hb). Fe3O4@mSiO2(Hb) exhibited typical mesoporous characteristics (mesoporous silica), magnetic feature (Fe3O4) and peroxidase activity (Hb). The results showed that the immobilization of Hb into Fe3O4@mSiO2 did not affect its activity. In addition, Fe3O4@mSiO2(Hb) exhibited a higher efficiency in the peroxidation of aromatic compounds than free Hb. The peroxidase activity of the synthesized biocatalyst was estimated to be 120 Ug-1, which was almost four times greater than that of previously reported immobilized Hb. Also, the Km of Fe3O4@mSiO2(Hb) was similar to that of the free Hb and it was estimated to be 4.3 × 10-4 μM, indicating that the activity of the Hb in the immobilized enzyme was not affected after immobilization. The immobilized enzyme was also found to be stable, recyclable and reusable. Taken together, these results indicate that the Fe3O4@mSiO2(Hb) has good potential to be used for treating organic wastewater containing aromatic compounds. The magnetically separable novel biocatalyst developed in this study provided not only a more suitable microenvironment for retaining the activity of Hb, but also demonstrated enhanced stability and activity under unfavorable conditions.
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Affiliation(s)
- Jiayin Liu
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, China; College of Arts and Sciences, Northeast Agricultural University, Harbin, China
| | - Hossein Ghanizadeh
- School of Agriculture and Environment, Massey University, Palmerston North, New Zealand
| | - Xinmao Li
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, China
| | - Lidong An
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, China
| | - Youwen Qiu
- College of Life Sciences, Northeast Agricultural University, Harbin, China
| | - Yao Zhang
- College of Life Sciences, Northeast Agricultural University, Harbin, China
| | - Xiuling Chen
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, China
| | - Aoxue Wang
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, China; College of Life Sciences, Northeast Agricultural University, Harbin, China.
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Aylaz G, Andaç M, Denizli A, Duman M. Recognition of human hemoglobin with macromolecularly imprinted polymeric nanoparticles using non-covalent interactions. J Mol Recognit 2021; 34:e2935. [PMID: 34472144 DOI: 10.1002/jmr.2935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 08/03/2021] [Accepted: 08/23/2021] [Indexed: 11/07/2022]
Abstract
Hemoglobin (Hb) is the most abundant protein in the blood. It is vital for the living as oxygen carriers. Some of the very pure Hb-containing biological fluids are currently under clinical trial. However, the removal and purification of Hb from the blood are quite difficult, especially when it is at a low concentration level. In this study, the molecularly imprinted polymeric nanoparticles (MIPNs) were prepared using N-methacryloyl-histidine methyl ester (MAH) by mini-emulsion polymerization technique for specific binding of human hemoglobin (HHb). MIPNs in monosize form have a size of 152 ± 4 nm. They also have a high binding capacity (32.33 mg/g) of HHb. MIPNs retain 84% of the re-binding capacity for HHb after 10 cycles. The nanoparticles have 16 and 5 times higher binding capacity of HHb, respectively, in the presence of bovine serum albumin and lysozyme. Thanks to their high binding capacity and selectivity, MIPNs will allow them to be detected selectively for different target molecules. According to molecular docking, the main binding forces depend on hydrogen bonds and Van der Waals forces in the interaction within 5 Å around MAH molecule are observed through the amino acid residues of HHb at β1 and β2 subunit. The statistical mechanical analysis of docking showed that the free energy (ΔG) is -2732.14 kcal/mol, which indicates the interaction between MAH and HHb is energetically favorable at 298.15°K.
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Affiliation(s)
- Gülgün Aylaz
- Institute of Science, Nanotechnology and Nanomedicine Division, Hacettepe University, Ankara, Turkey
| | - Müge Andaç
- Faculty of Engineering, Environmental Engineering Department, Hacettepe University, Ankara, Turkey
| | - Adil Denizli
- Faculty of Science, Department of Chemistry, Hacettepe University, Ankara, Turkey
| | - Memed Duman
- Institute of Science, Nanotechnology and Nanomedicine Division, Hacettepe University, Ankara, Turkey
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Dybas J, Chiura T, Marzec KM, Mak PJ. Probing Heme Active Sites of Hemoglobin in Functional Red Blood Cells Using Resonance Raman Spectroscopy. J Phys Chem B 2021; 125:3556-3565. [PMID: 33787265 PMCID: PMC8154613 DOI: 10.1021/acs.jpcb.1c01199] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
![]()
The UV–vis absorption, Raman
imaging, and resonance Raman
(rR) spectroscopy methods were employed to study cyanohemoglobin (HbCN)
adducts inside living functional red blood cells (RBCs). The cyanide
ligands are especially optically sensitive probes of the active site
environment of heme proteins. The rR studies of HbCN and its isotopic
analogues (13CN–, C15N–, and 13C15N–), as well as a careful deconvolution of spectral data, revealed
that the ν(Fe–CN) stretching, δ(Fe–CN) bending,
and ν(C≡N) stretching modes occur at 454, 382, and 2123
cm–1, respectively. Interestingly, while the ν(Fe–CN)
modes exhibit the same frequencies in both the isolated and RBC-enclosed
hemoglobin molecules, small frequency differences are observed in
the δ(Fe–CN) bending modes and the values of their isotopic
shifts. These studies show that even though the overall tilted conformation
of the Fe–C≡N fragment in the isolated HbCN is preserved
in the HbCN enclosed within living cells, there is a small difference
in the degree of distortion of the Fe–C≡N fragment.
The slight changes in the ligand geometry can be reasonably attributed
to the high ordering and tight packing of Hb molecules inside RBCs.
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Affiliation(s)
- Jakub Dybas
- Chemistry Department, Saint Louis University, 3501 Laclede Avenue, Saint Louis 63103, Missouri, United States.,Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzyńskiego Str., Krakow 30-348, Poland
| | - Tapiwa Chiura
- Chemistry Department, Saint Louis University, 3501 Laclede Avenue, Saint Louis 63103, Missouri, United States
| | - Katarzyna M Marzec
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzyńskiego Str., Krakow 30-348, Poland
| | - Piotr J Mak
- Chemistry Department, Saint Louis University, 3501 Laclede Avenue, Saint Louis 63103, Missouri, United States
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Mehraban F, Rayati S, Mirzaaghaei V, Seyedarabi A. Highlighting the Importance of Water Alkalinity Using Phosphate Buffer Diluted With Deionized, Double Distilled and Tap Water, in Lowering Oxidation Effects on Human Hemoglobin Ozonated at High Ozone Concentrations in vitro. Front Mol Biosci 2020; 7:543960. [PMID: 33195405 PMCID: PMC7580503 DOI: 10.3389/fmolb.2020.543960] [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: 03/18/2020] [Accepted: 09/14/2020] [Indexed: 12/01/2022] Open
Abstract
In autohemotherapy, it is important to find a way to lower the effects of oxidation, especially at high concentrations of ozone. One of the parameters, other than ozone concentration, which can have a significant effect on the stability and rate of decomposition of ozone at high concentrations, is the presence of ions in water. A number of spectroscopic techniques including intrinsic fluorescence, circular dichroism and UV–VIS were used as well as SDS-PAGE, Native-PAGE dynamic light scattering and water ion analysis, in order to investigate the effects of two relatively high concentrations of ozone on purified human hemoglobin (Hb) in phosphate buffer and diluted versions with deionized, double distilled and tap water in vitro. Purified human Hb and not whole blood human Hb was used in this study, since the addition of water to the whole blood would have caused the RBCs to lyse, affecting the purification of Hb for further analysis. Therefore, using purified Hb, it was possible to investigate the effects of dilution of 50 mM phosphate buffer to 10 mM phosphate buffer with different water types including non-ion containing deionized and double distilled water as well as ion-containing tap water, when ozonated at 55 and 80 μg/ml ozone. The fundamental changes in the secondary and tertiary structures of Hb were seen to be related to non-ozonated Hb samples diluted with deionized and double distilled waters, respectively. Generally, Hb oligomerization was more likely to occur at the higher concentration of ozone (80 μg/ml) and in samples where phosphate buffer was diluted with non-ion containing deionized and double distilled waters and not the ion-containing tap water. This could be explained by the presence of water alkalinity or bicarbonate ions in tap water, which can scavenge free radicals and reduce Hb oxidation/oligomerization. Therefore, it was concluded that Hb could best withstand high concentrations of ozone in the presence of the undiluted 50 mM phosphate buffer followed by phosphate buffer diluted with tap water, containing bicarbonate ions.
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Affiliation(s)
- Fouad Mehraban
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Saeed Rayati
- Department of Chemistry, K. N. Toosi University of Technology, Tehran, Iran
| | - Vahid Mirzaaghaei
- The Founder of Gardina Corporation and Manufacturer of Ozone Therapy Devices in Tehran, Tehran, Iran
| | - Arefeh Seyedarabi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
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Dybas J, Bokamper MJ, Marzec KM, Mak PJ. Probing the structure-function relationship of hemoglobin in living human red blood cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 239:118530. [PMID: 32498028 DOI: 10.1016/j.saa.2020.118530] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 05/14/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
Hemoglobin (Hb) is a key component of respiratory system and as such plays important role in human physiology. The studies of Hb's structure and functions are usually performed on cell-free protein; however, it has been shown that there are functionally relevant differences between isolated Hb and Hb present inside red blood cells (RBCs). It is clear that new experimental approaches are needed to understand the origin of these differences and to gain insight into the structure-function relationship of Hb within intact living cells. In this work we present a novel application of Resonance Raman spectroscopy to study heme active site of different forms of human Hb within living RBCs using laser excitation lines in resonance with their Soret absorption bands. These studies revealed that there are no significant changes in the disposition of the Fe-O-O fragment or the Fe-NHis linkage for Hb molecules enclosed in RBCs and these in free isolated states. However, some changes in the orientation of the heme vinyl groups were observed which might account for the differences in the protein activity and ligand affinity. This work highlights importance of protein-based studies and presents a new opportunity to translate these results to physiological cell systems.
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Affiliation(s)
- Jakub Dybas
- Saint Louis University, Chemistry Department, 3501 Laclede Ave., 63103 Saint Louis, MO, United States; Jagiellonian University, Jagiellonian Centre for Experimental Therapeutics (JCET), 14 Bobrzyńskiego Str., 30-348 Krakow, Poland
| | - Matthew J Bokamper
- Saint Louis University, Chemistry Department, 3501 Laclede Ave., 63103 Saint Louis, MO, United States
| | - Katarzyna M Marzec
- Jagiellonian University, Jagiellonian Centre for Experimental Therapeutics (JCET), 14 Bobrzyńskiego Str., 30-348 Krakow, Poland.
| | - Piotr J Mak
- Saint Louis University, Chemistry Department, 3501 Laclede Ave., 63103 Saint Louis, MO, United States.
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13
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Mokaberi P, Reyhani V, Amiri-Tehranizadeh Z, Saberi MR, Beigoli S, Samandar F, Chamani J. New insights into the binding behavior of lomefloxacin and human hemoglobin using biophysical techniques: binary and ternary approaches. NEW J CHEM 2019. [DOI: 10.1039/c9nj01048c] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Demonstrates the overlap that had been induced between the fluorescence emission spectrum of Hb and the absorption spectrum of drugs, which has proved that there is a high probability to the occurrence of energy transfer from Hb and LMF in the absence and presence of NRF.
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Affiliation(s)
- Parisa Mokaberi
- Department of Biology
- Faculty of Sciences
- Mashhad Branch
- Islamic Azad University
- Mashhad
| | - Vida Reyhani
- Department of Biology
- Faculty of Sciences
- Mashhad Branch
- Islamic Azad University
- Mashhad
| | | | - Mohammad Reza Saberi
- Department of Medical Chemistry
- School of Pharmacy
- Mashhad University of Medical Sciences
- Mashhad
- Iran
| | - Sima Beigoli
- Endoscopic and Minimally Invasive Surgery Research Center
- Mashhad University of Medical Sciences
- Mashhad
- Iran
| | - Farzaneh Samandar
- Department of Biology
- Faculty of Sciences
- Mashhad Branch
- Islamic Azad University
- Mashhad
| | - Jamshidkhan Chamani
- Department of Biology
- Faculty of Sciences
- Mashhad Branch
- Islamic Azad University
- Mashhad
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14
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Flow cytometric analysis of Xenopus laevis and X. tropicalis blood cells using acridine orange. Sci Rep 2018; 8:16245. [PMID: 30390005 PMCID: PMC6214894 DOI: 10.1038/s41598-018-34631-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 10/01/2018] [Indexed: 02/02/2023] Open
Abstract
Automated blood cell counters can distinguish cells based on their size and the presence or absence of a nucleus. However, most vertebrates have nucleated blood cells that cannot be counted automatically. We established an alternative automatic method for counting peripheral blood cells by staining cells with the fluorescent dye acridine orange (AO) and analysing cell populations using flow cytometry (FCM). As promising new animal models, we chose Xenopus laevis and three inbred strains of X. tropicalis. We compared the haematological phenotypes, including blood cell types, cell sizes, cellular structure, and erythrocyte lifespans/turnover rate among X. laevis and the three inbred strains of X. tropicalis. Each cell type from X. laevis was sorted according to six parameters: forward- and side-scattered light emission, AO red and green fluorescence intensity, and cellular red and green fluorescence. Remarkably, the erythrocyte count was the highest in the Golden line, suggesting that genetic factors were associated with the blood cells. Furthermore, immature erythrocytes in anaemic X. laevis could be separated from normal blood cells based on red fluorescence intensity. These results show that FCM with AO staining allows for an accurate analysis of peripheral blood cells from various species.
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15
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Erol K, Köse K. Efficient polymeric material for separation of human hemoglobin. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:39-45. [DOI: 10.1080/21691401.2016.1233112] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Kadir Erol
- Department of Property Protection and Safety, Osmancık Ömer Derindere Vocational Higher School, Hitit University, Corum, Turkey
| | - Kazım Köse
- Scientific Technical Research and Application Center, Hitit University, Corum, Turkey
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16
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Morrill GA, Kostellow AB. Molecular Properties of Globin Channels and Pores: Role of Cholesterol in Ligand Binding and Movement. Front Physiol 2016; 7:360. [PMID: 27656147 PMCID: PMC5011150 DOI: 10.3389/fphys.2016.00360] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 08/08/2016] [Indexed: 02/02/2023] Open
Abstract
Globins contain one or more cavities that control or affect such functions as ligand movement and ligand binding. Here we report that the extended globin family [cytoglobin (Cygb); neuroglobin (Ngb); myoglobin (Mb); hemoglobin (Hb) subunits Hba(α); and Hbb(β)] contain either a transmembrane (TM) helix or pore-lining region as well as internal cavities. Protein motif/domain analyses indicate that Ngb and Hbb each contain 5 cholesterol- binding (CRAC/CARC) domains and 1 caveolin binding motif, whereas the Cygb dimer has 6 cholesterol-binding domains but lacks caveolin-binding motifs. Mb and Hba each exhibit 2 cholesterol-binding domains and also lack caveolin-binding motifs. The Hb αβ-tetramer contains 14 cholesterol-binding domains. Computer algorithms indicate that Cygb and Ngb cavities display multiple partitions and C-terminal pore-lining regions, whereas Mb has three major cavities plus a C-terminal pore-lining region. The Hb tetramer exhibits a large internal cavity but the subunits differ in that they contain a C-terminal TM helix (Hba) and pore-lining region (Hbb). The cavities include 43 of 190 Cygb residues, 38 of 151 of Ngb residues, 55 of 154 Mb residues, and 137 of 688 residues in the Hb tetramer. Each cavity complex includes 6 to 8 residues of the TM helix or pore-lining region and CRAC/CARC domains exist within all cavities. Erythrocyte Hb αβ-tetramers are largely cytosolic but also bind to a membrane anion exchange protein, "band 3," which contains a large internal cavity and 12 TM helices (5 being pore-lining regions). The Hba TM helix may be the erythrocyte membrane "band 3" attachment site. "Band 3" contributes 4 caveolin binding motifs and 10 CRAC/CARC domains. Cholesterol binding may create lipid-disordered phases that alter globin cavities and facilitate ligand movement, permitting ion channel formation and conformational changes that orchestrate anion and ligand (O2, CO2, NO) movement within the large internal cavities and channels of the globins.
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Affiliation(s)
- Gene A Morrill
- Department of Physiology and Biophysics, Albert Einstein College of Medicine Bronx, NY, USA
| | - Adele B Kostellow
- Department of Physiology and Biophysics, Albert Einstein College of Medicine Bronx, NY, USA
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17
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Wang M, Fu C, Liu X, Lin Z, Yang N, Yu S. Probing the mechanism of plasma protein adsorption on Au and Ag nanoparticles with FT-IR spectroscopy. NANOSCALE 2015; 7:15191-6. [PMID: 26313141 DOI: 10.1039/c5nr04498g] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Protein-nanoparticle interactions are important in biomedical applications of nanoparticles and for growing biosafety concerns about nanomaterials. In this study, the interactions of four plasma proteins, human serum albumin (HSA), myoglobin (MB), hemoglobin (HB), and trypsin (TRP), with Au and Ag nanoparticles were investigated by FT-IR spectroscopy. The secondary structure of thio-proteins changed with time during incubation with Au and Ag nanoparticles, but the secondary structures of non-thio-proteins remained unchanged. The incubation time for structural changes depended on the sulfur-metal bond energy; the stronger the sulfur-metal energy, the less the time needed. H/D exchange experiments revealed that protein-NP complexes with thio-proteins were less dynamic than free proteins. No measurable dynamic differences were found between free non-thio-proteins and the protein-Au (or Ag) nanoparticle complex. Therefore, the impact of covalent bonds on the protein structure is greater than that of the electrostatic force.
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Affiliation(s)
- Mengmeng Wang
- Department of Chemistry, Fudan University, Shanghai 200433, China.
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18
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Kostić IT, Ilić VL, Đorđević VB, Bukara KM, Mojsilović SB, Nedović VA, Bugarski DS, Veljović ĐN, Mišić DM, Bugarski BM. Erythrocyte membranes from slaughterhouse blood as potential drug vehicles: Isolation by gradual hypotonic hemolysis and biochemical and morphological characterization. Colloids Surf B Biointerfaces 2014; 122:250-259. [DOI: 10.1016/j.colsurfb.2014.06.043] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 06/17/2014] [Accepted: 06/22/2014] [Indexed: 11/30/2022]
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19
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Wei Y, Li C, Zhang L, Su Z, Xu X. Inhibition of methemoglobin formation in aqueous solutions under aerobic conditions by the addition of amino acids. Int J Biol Macromol 2013; 64:267-75. [PMID: 24342540 DOI: 10.1016/j.ijbiomac.2013.12.010] [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: 07/22/2013] [Revised: 12/06/2013] [Accepted: 12/08/2013] [Indexed: 10/25/2022]
Abstract
Hemoglobin (Hb) as an important iron-containing oxygen-transport protein is easily oxidized to the ferric met-form, methemoglobin (metHb), and loses the capacity of binding oxygen during storage. In this study, the experimental data indicate that the presence of Tyr and Glu significantly suppress the metHb formation in the Hb solutions in aqueous environment under aerobic conditions at the temperature of 25 and 37 °C, respectively. At pO2 of 144Torr the metHb percentage in the Hb solutions was the lowest with less than 10% at day 7 after incubation with Tyr at the ratio of 24 at pH 9.5 at 25 °C. At 37 °C, the metHb percentage did not reach 5% after 12h of incubation with Glu at the ratio of 24 at pH 9. Molecular simulation analysis suggest that the presence of Tyr or Glu may contribute to the formation of the breakwater network, the stabilization of distal histidine, the changes in the size of heme pocket, and eventually result in the inhibition of metHb formation. This study provides insight into a new design for Hb-oxygen based carriers with strongly inhibition of metHb formation in aqueous environment under aerobic conditions, even at physiological temperature in vitro.
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Affiliation(s)
- Yuping Wei
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunlong Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liang Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiguo Su
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Xia Xu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.
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20
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Lin T, Sammy F, Yang H, Thundivalappil S, Hellman J, Tracey KJ, Warren HS. Identification of hemopexin as an anti-inflammatory factor that inhibits synergy of hemoglobin with HMGB1 in sterile and infectious inflammation. THE JOURNAL OF IMMUNOLOGY 2012; 189:2017-22. [PMID: 22772444 DOI: 10.4049/jimmunol.1103623] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Hemoglobin is released from lysed RBCs in numerous clinical settings. High mobility group box 1 (HMGB1) is a nuclear and cytosolic DNA-binding protein released from injured cells that has been shown to play an important role in inducing inflammation. Because both of these endogenous molecules are frequently present in sites of necrosis and inflammation, we studied their interaction on the activation of macrophages. We report in this article that hemoglobin and HMGB1 synergize to activate mouse macrophages to release significantly increased proinflammatory cytokines. Addition of microbial ligands that activate through TLR2 or TLR4 resulted in further significant increases, in a "three-way" synergy between endogenous and microbial ligands. The synergy was strongly suppressed by hemopexin (Hx), an endogenous heme-binding plasma protein. The findings suggest that hemoglobin may play an important role in sterile and infectious inflammation, and that endogenous Hx can modulate this response. Administration of Hx may be beneficial in clinical settings characterized by elevated extracellular hemoglobin and HMGB1.
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Affiliation(s)
- Tian Lin
- Infectious Disease Unit, Massachusetts General Hospital, Boston, MA 02129, USA.
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21
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Liu J, Guan J, Lu M, Kan Q, Li Z. Hemoglobin immobilized with modified "fish-in-net" approach for the catalytic removal of aniline. JOURNAL OF HAZARDOUS MATERIALS 2012; 217-218:156-163. [PMID: 22483438 DOI: 10.1016/j.jhazmat.2012.03.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2011] [Revised: 02/26/2012] [Accepted: 03/03/2012] [Indexed: 05/31/2023]
Abstract
Blood is a waste product of the slaughter industry, while its main component hemoglobin (Hb) is a pseudo-peroxidase which is able to oxidize polycyclic aromatic hydrocarbons (PAHs) in the presence of H(2)O(2). In order to use Hb for wastewater treatment, we encapsulated it in silica-based matrix by modified "fish-in-net" approach. The as-synthesized catalysts were characterized by SEM, TEM, BET and solid-state UV-vis spectroscopy. It was found that Hb was partially homogeneously dispersed in microspheres and showed more stable peroxidase-like activity than free Hb. Moreover, it had substantially increased storage stability as well as pH stability. It was used as biocatalyst to remove aniline in aqueous solution and gave a reduction of 65% aniline removal, while 76% in the presence of additive PEG. No significant activity loss was observed after ten runs. These experimental results suggest that the resultant product was a promising biocatalyst for aromatic wastewater treatment.
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Affiliation(s)
- Jiayin Liu
- Key Laboratory for Molecular Enzymology and Engineering, The Ministry of Education, Jilin University, Changchun 130012, China
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22
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Isolation of Hemoglobin from Bovine Erythrocytes by Controlled Hemolysis in the Membrane Bioreactor. Appl Biochem Biotechnol 2012; 166:1491-506. [DOI: 10.1007/s12010-012-9543-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Accepted: 01/03/2012] [Indexed: 10/14/2022]
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23
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Altıntas EB, Türkmen D, Karakoç V, Denizli A. Hemoglobin binding from human blood hemolysate with poly(glycidyl methacrylate) beads. Colloids Surf B Biointerfaces 2011; 85:235-40. [DOI: 10.1016/j.colsurfb.2011.02.034] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 02/24/2011] [Accepted: 02/24/2011] [Indexed: 11/27/2022]
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24
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Lin T, Kwak YH, Sammy F, He P, Thundivalappil S, Sun G, Chao W, Warren HS. Synergistic inflammation is induced by blood degradation products with microbial Toll-like receptor agonists and is blocked by hemopexin. J Infect Dis 2010; 202:624-32. [PMID: 20617898 DOI: 10.1086/654929] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Detection of microbial components by immune cells via Toll-like receptors (TLRs) with subsequent induction of inflammation is essential for host defense. However, an overactive immune response can cause tissue damage and sepsis. The endogenous molecule hemoglobin and its derivative heme are often released into tissue compartments where there is infection in the presence of degrading blood. We found that hemoglobin synergizes with multiple TLR agonists to induce high levels of tumor necrosis factor and interleukin-6 from macrophages and that this synergy is independent of TLR4 and MyD88. In contrast, heme synergized with some but not all TLR agonists studied. Furthermore, the synergy of both hemoglobin and heme with lipopolysaccharide was suppressed by hemopexin, a plasma heme-binding protein. These studies suggest that hemoglobin and heme may substantially contribute to microbe-induced inflammation when bacterial or viral infection coexists with blood degradation and that hemopexin may play a role in controlling inflammation in such settings.
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Affiliation(s)
- Tian Lin
- Infectious Disease Unit, Massachusetts General Hospital, Boston, MA 02129, USA
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25
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Lima FF, Andrade CT. Effect of melt-processing and ultrasonic treatment on physical properties of high-amylose maize starch. ULTRASONICS SONOCHEMISTRY 2010; 17:637-641. [PMID: 20133177 DOI: 10.1016/j.ultsonch.2010.01.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2009] [Revised: 11/29/2009] [Accepted: 01/03/2010] [Indexed: 05/28/2023]
Abstract
High-amylose maize starch (Hylon VII) was submitted to melt-processing in an internal mixer at 100 degrees C and 40 rpm for 8 min. Glycerol was used as a plasticiser at different polymer/glycerol ratios. Torque and temperature curves were obtained. After glycerol extraction with ethyl alcohol, the samples were dispersed at 5 g/L, and treated by ultrasound radiation at the same conditions for 30 min. Samples were characterised by (1)H NMR spectrometry, viscosity measurements, and X-ray diffractometry. The results revealed that both glycerol and water had an important role on the crystallinity properties of the resulting products. Melt-processed and sonicated samples showed similar (1)H NMR spectra. Ultrasound treatment caused a significant reduction in intrinsic viscosity for the sample previously processed with the highest glycerol content, probably because of its higher solubility in water.
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Affiliation(s)
- Felipe F Lima
- Universidade Federal do Rio de Janeiro, Instituto de Macromoléculas Professora Eloisa Mano, Centro de Tecnologia, Bloco J, PO Box 68525, 21945-970 Rio de Janeiro, Brazil
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Abstract
Bovine and human hemoglobin (bHb and hHb, respectively) was purified from bovine and human red blood cells via tangential flow filtration (TFF) in four successive stages. TFF is a fast and simple method to purify Hb from RBCs using filtration through hollow fiber (HF) membranes. Most of the Hb was retained in stage III (100 kDa HF membrane) and displayed methemoglobin levels less than 1%, yielding final concentrations of 318 and 300 mg/mL for bHb and hHb, respectively. Purified Hb exhibited much lower endotoxin levels than their respective RBCs. The purity of Hb was initially assessed via SDS-PAGE, and showed tiny impurity bands for the stage III retentate. The oxygen affinity (P(50)) and cooperativity coefficient (n) were regressed from the measured oxygen-RBC/Hb equilibrium curves of RBCs and purified Hb. These results suggest that TFF yielded oxygen affinities of bHb and hHb that are comparable to values in the literature. LC-MS was used to measure the molecular weight of the alpha (alpha) and beta (beta) globin chains of purified Hb. No impurity peaks were present in the HPLC chromatograms of purified Hb. The mass of the molecular ions corresponding to the alpha and beta globin chains agreed well with the calculated theoretical mass of the alpha- and beta- globin chains. Taken together, our results demonstrate that HPLC-grade Hb can be generated via TFF. In general, this method can be more broadly applied to purify Hb from any source of RBCs. This work is significant, since it outlines a simple method for generating Hb for synthesis and/or formulation of Hb-based oxygen carriers.
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Affiliation(s)
- Andre F Palmer
- Dept. of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
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27
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Stocker-Majd G, Hilbrig F, Freitag R. Extraction of haemoglobin from human blood by affinity precipitation using a haptoglobin-based stimuli–responsive affinity macroligand. J Chromatogr A 2008; 1194:57-65. [DOI: 10.1016/j.chroma.2008.03.091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2008] [Revised: 03/20/2008] [Accepted: 03/20/2008] [Indexed: 10/22/2022]
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28
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Hu DH, Wu HM, Liang JG, Han HY. Study on the interaction between CdSe quantum dots and hemoglobin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 69:830-4. [PMID: 17625958 DOI: 10.1016/j.saa.2007.05.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2007] [Revised: 04/07/2007] [Accepted: 05/14/2007] [Indexed: 05/16/2023]
Abstract
The interaction between CdSe quantum dots (QDs) and hemoglobin (Hb) was investigated by ultraviolet and visible (UV-vis) absorption spectroscopy, Fourier transform infrared (FTIR) spectroscopy, and fluorescence (FL) spectroscopy. The intensity of UV-vis absorption spectrum of a mixture of CdSe QDs and Hb was obviously changed at the wavelength of 406nm at pH 7.0, indicating that CdSe QDs could bind with Hb. The influences of some factors on the interactions between CdSe QDs and Hb were studied in detail. The binding molar ratio of CdSe QDs and Hb was 12:1 by a mole-ratio method. The mechanism of the interaction between CdSe QDs and Hb was also discussed.
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Affiliation(s)
- De-Hong Hu
- College of Science, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, PR China
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29
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Lima MCP, Andrade CT. Stroma-free hemoglobin from bovine blood. ARTIFICIAL CELLS, BLOOD SUBSTITUTES, AND IMMOBILIZATION BIOTECHNOLOGY 2007; 35:431-47. [PMID: 17701489 DOI: 10.1080/10731190701460333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Isolation and purification of bovine hemoglobin (HbBv) was carried out after reaction of whole blood with carbon monoxide. Washing/centrifugation steps were used to eliminate leukocytes, platelets, and plasma proteins. Hypotonic media and ultrasound radiation were used to lyse red blood cells. Lyse by ultrasound was shown to lead to solutions at the highest concentrations in HbBv, and the least concentrations in major phospholipids contaminants. Additional purification procedures were performed to remove membrane proteins and phospholipids. In the first case, proteins were denatured by thermal treatment, and filtered. To eliminate phospholipids, liquid chromatography was used with strong anion exchangers. Purity of HbBv was evaluated by normal phase high performance liquid chromatography (HPLC), electrophoresis, and size-exclusion HPLC.
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Affiliation(s)
- Maria Celiana P Lima
- Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Centro de Tecnologia, Rio de Janeiro, Brazil
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30
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Liu TQ, Guo R. Influences of Triton X-100 on Hemoglobin Behaviors in Hemoglobin/Acyclovir/Triton X-100/H2O System. CHINESE J CHEM 2007. [DOI: 10.1002/cjoc.200790092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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