1
|
Kontoghiorghes GJ. The Vital Role Played by Deferiprone in the Transition of Thalassaemia from a Fatal to a Chronic Disease and Challenges in Its Repurposing for Use in Non-Iron-Loaded Diseases. Pharmaceuticals (Basel) 2023; 16:1016. [PMID: 37513928 PMCID: PMC10384919 DOI: 10.3390/ph16071016] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/13/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023] Open
Abstract
The iron chelating orphan drug deferiprone (L1), discovered over 40 years ago, has been used daily by patients across the world at high doses (75-100 mg/kg) for more than 30 years with no serious toxicity. The level of safety and the simple, inexpensive synthesis are some of the many unique properties of L1, which played a major role in the contribution of the drug in the transition of thalassaemia from a fatal to a chronic disease. Other unique and valuable clinical properties of L1 in relation to pharmacology and metabolism include: oral effectiveness, which improved compliance compared to the prototype therapy with subcutaneous deferoxamine; highly effective iron removal from all iron-loaded organs, particularly the heart, which is the major target organ of iron toxicity and the cause of mortality in thalassaemic patients; an ability to achieve negative iron balance, completely remove all excess iron, and maintain normal iron stores in thalassaemic patients; rapid absorption from the stomach and rapid clearance from the body, allowing a greater frequency of repeated administration and overall increased efficacy of iron excretion, which is dependent on the dose used and also the concentration achieved at the site of drug action; and its ability to cross the blood-brain barrier and treat malignant, neurological, and microbial diseases affecting the brain. Some differential pharmacological activity by L1 among patients has been generally shown in relation to the absorption, distribution, metabolism, elimination, and toxicity (ADMET) of the drug. Unique properties exhibited by L1 in comparison to other drugs include specific protein interactions and antioxidant effects, such as iron removal from transferrin and lactoferrin; inhibition of iron and copper catalytic production of free radicals, ferroptosis, and cuproptosis; and inhibition of iron-containing proteins associated with different pathological conditions. The unique properties of L1 have attracted the interest of many investigators for drug repurposing and use in many pathological conditions, including cancer, neurodegenerative conditions, microbial conditions, renal conditions, free radical pathology, metal intoxication in relation to Fe, Cu, Al, Zn, Ga, In, U, and Pu, and other diseases. Similarly, the properties of L1 increase the prospects of its wider use in optimizing therapeutic efforts in many other fields of medicine, including synergies with other drugs.
Collapse
Affiliation(s)
- George J Kontoghiorghes
- Postgraduate Research Institute of Science, Technology, Environment and Medicine, Limassol 3021, Cyprus
| |
Collapse
|
2
|
Asmari M, Waqas M, Ibrahim AE, Halim SA, Khan A, Al-Harrasi A, Wätzig H, El Deeb S. Microscale Thermophoresis and Molecular Modelling to Explore the Chelating Drug Transportation in the Milk to Infant. Molecules 2022; 27:molecules27144604. [PMID: 35889479 PMCID: PMC9319837 DOI: 10.3390/molecules27144604] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/30/2022] [Accepted: 07/09/2022] [Indexed: 02/01/2023] Open
Abstract
The microscale thermophoresis (MST) technique was utilized to investigate lactoferrin–drug interaction with the iron chelator, deferiprone, using label-free system. MST depends on the intrinsic fluorescence of one interacting partner. The results indicated a significant interaction between lactoferrin and deferiprone. The estimated binding constant for the lactoferrin–deferiprone interaction was 8.9 × 10−6 ± 1.6, SD, which is to be reported for the first time. Such significant binding between lactoferrin and deferiprone may indicate the potentiation of the drug secretion into a lactating mother’s milk. The technique showed a fast and simple approach to study protein–drug interaction while avoiding complicated labeling procedures. Moreover, the binding behavior of deferiprone within the binding sites of lactoferrin was investigated through molecular docking which reflected that deferiprone mediates strong hydrogen bonding with ARG121 and ASP297 in pocket 1 and forms H-bond and ionic interaction with ASN640 and ASP395, respectively, in pocket 2 of lactoferrin. Meanwhile, iron ions provide ionic interaction with deferiprone in both of the pockets. The molecular dynamic simulation further confirmed that the binding of deferiprone with lactoferrin brings conformational changes in lactoferrin that is more energetically stable. It also confirmed that deferiprone causes positive correlation motion in the interacting residues of both pockets, with strong negative correlation motion in the loop regions, and thus changes the dynamics of lactoferrin. The MM-GBSA based binding free energy calculation revealed that deferiprone exhibits ∆G TOTAL of −63,163 kcal/mol in pocket 1 and −63,073 kcal/mol in pocket 2 with complex receptor–ligand difference in pocket 1 and pocket 2 of −117.38 kcal/mol and −111.54 kcal/mol, respectively, which in turn suggests that deferiprone binds more strongly in the pocket 1. The free energy landscape of the lactoferrin–deferiprone complex also showed that this complex remains in a high energy state that confirms the strong binding of deferiprone with the lactoferrin. The current research concluded that iron-chelating drugs (deferiprone) can be transported from the mother to the infant in the milk because of the strong attachment with the lactoferrin active pockets.
Collapse
Affiliation(s)
- Mufarreh Asmari
- College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia;
| | - Muhammad Waqas
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
| | - Adel Ehab Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
- Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port Fouad 42526, Egypt
| | - Sobia Ahsan Halim
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
| | - Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
| | - Hermann Wätzig
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany;
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany;
- Correspondence:
| |
Collapse
|
3
|
Kontoghiorghes GJ, Kontoghiorghe CN. Iron and Chelation in Biochemistry and Medicine: New Approaches to Controlling Iron Metabolism and Treating Related Diseases. Cells 2020; 9:E1456. [PMID: 32545424 PMCID: PMC7349684 DOI: 10.3390/cells9061456] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 02/07/2023] Open
Abstract
Iron is essential for all living organisms. Many iron-containing proteins and metabolic pathways play a key role in almost all cellular and physiological functions. The diversity of the activity and function of iron and its associated pathologies is based on bond formation with adjacent ligands and the overall structure of the iron complex in proteins or with other biomolecules. The control of the metabolic pathways of iron absorption, utilization, recycling and excretion by iron-containing proteins ensures normal biologic and physiological activity. Abnormalities in iron-containing proteins, iron metabolic pathways and also other associated processes can lead to an array of diseases. These include iron deficiency, which affects more than a quarter of the world's population; hemoglobinopathies, which are the most common of the genetic disorders and idiopathic hemochromatosis. Iron is the most common catalyst of free radical production and oxidative stress which are implicated in tissue damage in most pathologic conditions, cancer initiation and progression, neurodegeneration and many other diseases. The interaction of iron and iron-containing proteins with dietary and xenobiotic molecules, including drugs, may affect iron metabolic and disease processes. Deferiprone, deferoxamine, deferasirox and other chelating drugs can offer therapeutic solutions for most diseases associated with iron metabolism including iron overload and deficiency, neurodegeneration and cancer, the detoxification of xenobiotic metals and most diseases associated with free radical pathology.
Collapse
Affiliation(s)
- George J. Kontoghiorghes
- Postgraduate Research Institute of Science, Technology, Environment and Medicine, CY-3021 Limassol, Cyprus;
| | | |
Collapse
|
4
|
Insight into the binding and conformational changes of hemoglobin/lysozyme with bimetallic alloy nanoparticles using various spectroscopic approaches. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111747] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
5
|
He M, Hu Q, Mei Y, Zhou B, Kong J, Zhang X. Metal-to-Ligand Charge-Transfer-based Visual Detection of Alkaline Phosphatase Activity. ANAL SCI 2018. [PMID: 29526903 DOI: 10.2116/analsci.34.341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The ability to directly detect alkaline phosphatase (ALP) activity in undiluted serum samples is of great importance for clinical diagnosis. In this work, we report the use of the distinctive metal-to-ligand charge-transfer (MLCT) absorption properties of the Cu(BCA)2+ (BCA = bicinchoninic acid) reporter for the visual detection of ALP activity. In the presence of ALP, the substrate ascorbic acid 2-phosphate (AAP) can be enzymatically hydrolyzed to release ascorbic acid (AA), which in turn reduces Cu2+ to Cu+. Subsequently, the complexation of Cu+ with the BCA ligand generates the chromogenic Cu(BCA)2+ reporter, accompanied by a color change of colorless-to-purple of the solution with a sharp absorption band at 562 nm. The underlying MLCT-based mechanism has been demonstrated on the basis of density functional theory (DFT) calculations. Needless of any sequential multistep operations and elaborately designed colorimetric probe, the proposed MLCT-based method allows for a fast and sensitive visual detection of ALP activity within a broad linear range of 20 - 200 mU mL-1 (R2 = 0.999), with a detection limit of 1.25 mU mL-1. The results also indicate that it is highly selective and has great potential for the screening of ALP inhibitors in drug discovery. More importantly, it shows a good analytical performance for the direct detection of the endogenous ALP levels of undiluted human serum samples. Owing to the prominent simplicity and practicability, it is reasonable to conclude that the proposed MLCT-based method has a high application prospect in clinical diagnosis.
Collapse
Affiliation(s)
- Minhui He
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology
| | - Qiong Hu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology
| | - Yaqi Mei
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology
| | - Baojing Zhou
- School of Chemical Engineering, Nanjing University of Science and Technology
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology
| | - Xueji Zhang
- Chemistry Department, College of Arts and Sciences, University of South Florida
| |
Collapse
|
6
|
Evidence of bovine serum albumin-viologen herbicide binding interaction and associated structural modifications. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
7
|
Hu Q, Zhou B, Li F, Kong J, Zhang X. Turn-On Colorimetric Platform for Dual Activity Detection of Acid and Alkaline Phosphatase in Human Whole Blood. Chem Asian J 2016; 11:3040-3045. [PMID: 27615725 DOI: 10.1002/asia.201601006] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/07/2016] [Indexed: 01/28/2023]
Abstract
The activity detection of acid phosphatase (ACP) and alkaline phosphatase (ALP) is of great importance to the diagnosis and prognosis of related diseases. In this work, we report for the first time a turn-on colorimetric platform for the activity detection of ACP and ALP, by exploiting Cu(BCDS)22- (BCDS=bathocuproinedisulfonate) as the probe. The presence of ACP or ALP dephosphorylates the substrate ascorbic acid 2-phosphate to produce ascorbic acid, which then reduces Cu(BCDS)22- into Cu(BCDS)23- , leading to a turn-on spectral absorption at 484 nm and a dramatic color change of the solution from colorless to orange-red. The underlying metal-to-ligand charge-transfer mechanism has been demonstrated by quantum mechanical computations. This platform allows a rapid, sensitive readout of ACP and ALP activities within the dynamic range from 0 to 220 mU ml-1 . In addition, it is highly immune to false-positive results and also highly selective. More importantly, it is applicable in the presence of human serum and even whole blood samples. These results demonstrate that our platform holds great potential in clinical practices and in the point-of-care analysis.
Collapse
Affiliation(s)
- Qiong Hu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Baojing Zhou
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Feng Li
- American Advanced Nanotechnology, Houston, TX, 77459, USA
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Xueji Zhang
- Chemistry Department, College of Arts and Sciences, University of South Florida, Tampa, FL, 33620-4202, USA
| |
Collapse
|
8
|
Kontoghiorghe CN, Kolnagou A, Kontoghiorghes GJ. Phytochelators Intended for Clinical Use in Iron Overload, Other Diseases of Iron Imbalance and Free Radical Pathology. Molecules 2015; 20:20841-72. [PMID: 26610453 PMCID: PMC6332094 DOI: 10.3390/molecules201119725] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 11/03/2015] [Accepted: 11/09/2015] [Indexed: 12/26/2022] Open
Abstract
Iron chelating drugs are primarily and widely used in the treatment of transfusional iron overload in thalassaemia and similar conditions. Recent in vivo and clinical studies have also shown that chelators, and in particular deferiprone, can be used effectively in many conditions involving free radical damage and pathology including neurodegenerative, renal, hepatic, cardiac conditions and cancer. Many classes of phytochelators (Greek: phyto (φυτό)—plant, chele (χηλή)—claw of the crab) with differing chelating properties, including plant polyphenols resembling chelating drugs, can be developed for clinical use. The phytochelators mimosine and tropolone have been identified to be orally active and effective in animal models for the treatment of iron overload and maltol for the treatment of iron deficiency anaemia. Many critical parameters are required for the development of phytochelators for clinical use including the characterization of the therapeutic targets, ADMET, identification of the therapeutic index and risk/benefit assessment by comparison to existing therapies. Phytochelators can be developed and used as main, alternative or adjuvant therapies including combination therapies with synthetic chelators for synergistic and or complimentary therapeutic effects. The development of phytochelators is a challenging area for the introduction of new pharmaceuticals which can be used in many diseases and also in ageing. The commercial and other considerations for such development have great advantages in comparison to synthetic drugs and could also benefit millions of patients in developing countries.
Collapse
Affiliation(s)
- Christina N Kontoghiorghe
- Postgraduate Research Institute of Science, Technology, Environment and Medicine, 3 Ammochostou Street, Limassol 3021, Cyprus.
| | - Annita Kolnagou
- Postgraduate Research Institute of Science, Technology, Environment and Medicine, 3 Ammochostou Street, Limassol 3021, Cyprus.
| | - George J Kontoghiorghes
- Postgraduate Research Institute of Science, Technology, Environment and Medicine, 3 Ammochostou Street, Limassol 3021, Cyprus.
| |
Collapse
|
9
|
Shanmugaraj K, Anandakumar S, Ilanchelian M. Unraveling the binding interaction of Toluidine blue O with bovine hemoglobin – a multi spectroscopic and molecular modeling approach. RSC Adv 2015. [DOI: 10.1039/c4ra11136b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Toluidine blue O (TBO) is a cationic photosensitizer that belongs to the class of phenothiazinium dyes.
Collapse
|
10
|
Shanmugaraj K, Anandakumar S, Ilanchelian M. Exploring the biophysical aspects and binding mechanism of thionine with bovine hemoglobin by optical spectroscopic and molecular docking methods. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 131:43-52. [DOI: 10.1016/j.jphotobiol.2014.01.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/19/2013] [Accepted: 01/05/2014] [Indexed: 10/25/2022]
|
11
|
Sattarahmady N, Heli H, Moosavi-Movahedi AA, Karimian K. Deferiprone: structural and functional modulating agent of hemoglobin fructation. Mol Biol Rep 2014; 41:1723-9. [PMID: 24415298 DOI: 10.1007/s11033-014-3021-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 01/02/2014] [Indexed: 11/25/2022]
Abstract
Diabetic complication arises from the presence of advanced glycation end products in different sites of the body. Great attention should be paid to recognizing anti-glycation compounds. Here, deferiprone as an oral iron chelator drug administrated in treatment of β-thalassemic patients was selected to find its effect on the fructation of hemoglobin (Hb). Our results indicated that deferiprone could prevent the AGE and carbonyl formation via inhibition of structural changes in the structure of Hb during the fructation process. Moreover, deferiprone can preserve peroxidase and esterase activities of fructated Hb similar to native Hb. Therefore, deferiprone can be introduced as an anti-glycation drug to prevent the AGE formation.
Collapse
Affiliation(s)
- Naghmeh Sattarahmady
- Department of Medical Physics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran,
| | | | | | | |
Collapse
|
12
|
Kontoghiorghe CN, Kolnagou A, Kontoghiorghes GJ. Potential clinical applications of chelating drugs in diseases targeting transferrin-bound iron and other metals. Expert Opin Investig Drugs 2013; 22:591-618. [PMID: 23586878 DOI: 10.1517/13543784.2013.787408] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Iron is essential for normal, neoplasmic and microbial cells. Transferrin (Tf) is responsible for iron transport and its interactions with chelators are of physiological and toxicological importance and could lead to new therapeutic applications. AREAS COVERED Differential interactions of Tf with chelators such as deferiprone (L1) could be used to modify toxicity and disease pathways in relation to iron and other metal metabolism. Iron mobilization by L1 could achieve normal body iron stores in thalassemia patients. Iron mobilization from the reticuloendothelial system by L1 and exchange with Tf could be used to increase the production of hemoglobin in the anemia of chronic disease. Iron accumulation is pathogenic in neurodegenerative, acute kidney and other diseases and could be removed by L1 with therapeutic implications. Deprivation of iron from neoplasmic and microbial cells by chelators could increase the prospect of improved treatments in cancer and infectious diseases. Other applications include metal detoxification and inhibition of oxidative stress-related conditions. EXPERT OPINION Specific mechanisms apply in the interactions of chelators with Tf, which could be used in the design of targeted therapeutic strategies in many conditions. In each case specific chelator protocols have to be designed for achieving optimum therapeutic activity.
Collapse
Affiliation(s)
- Christina N Kontoghiorghe
- Postgraduate Research Institute of Science, Technology, Environment and Medicine, Limassol CY 3021, Cyprus.
| | | | | |
Collapse
|
13
|
Banerjee M, Chakrabarti A, Basu S. Oxidative interaction between OxyHb and ATP: a spectroscopic study. J Phys Chem B 2012; 116:6150-7. [PMID: 22568780 DOI: 10.1021/jp302899t] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The binding mode between oxyhemoglobin (oxyHb) and adenosine triphosphate (ATP) has been studied using absorption and fluorescence spectroscopy. OxyHb forms a ground state complex with ATP supported by five isosbestic points which appear in absorption spectra of oxyHb in buffer solution on addition of ATP. Moreover, the changes in absorption spectra suggest an oxidative interaction between the particular interacting systems. The binding constant has been determined from the quenching of fluorescence of oxyHb in the presence of a varied concentration of ATP, and that is 3.8 × 10(3) M(-1) at 25 °C. The negative changes in entropy and enthalpy indicate that the binding is enthalpy driven and the hydrogen bond and van der Waals (stacking) interactions play a major role. The oxygen affinity of oxyHb decreases with simultaneous formation of metHb in the presence of ATP. ATP-induced structural changes have been affirmed using both circular dichroism spectroscopy and synchronous fluorescence. A theoretical docking study gives the molecular details about the binding site of ATP in oxyHb.
Collapse
Affiliation(s)
- Mousumi Banerjee
- Chemical Sciences Division, Saha Institute of Nuclear Physics, Kolkata, India
| | | | | |
Collapse
|
14
|
Banerjee M, Pal U, Subudhhi A, Chakrabarti A, Basu S. Interaction of Merocyanine 540 with serum albumins: Photophysical and binding studies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2012; 108:23-33. [DOI: 10.1016/j.jphotobiol.2011.12.005] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 12/14/2011] [Accepted: 12/15/2011] [Indexed: 10/14/2022]
|
15
|
Banerjee M, Maiti S, Kundu I, Chakrabarti A, Basu S. Simultaneous Occurrence of Energy Transfer and Photoinduced Electron Transfer in Interactions of Hen Egg White Lysozyme with 4-Nitroquinoline-1-Oxide. Photochem Photobiol 2010; 86:1237-46. [DOI: 10.1111/j.1751-1097.2010.00811.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
16
|
Mandal P, Bardhan M, Ganguly T. A detailed spectroscopic study on the interaction of Rhodamine 6G with human hemoglobin. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2010; 99:78-86. [DOI: 10.1016/j.jphotobiol.2010.02.009] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Revised: 01/29/2010] [Accepted: 02/23/2010] [Indexed: 10/19/2022]
|
17
|
Moosavi-Movahedi AA, Mousavy SJ, Divsalar A, Babaahmadi A, Karimian K, Shafiee A, Kamarie M, Poursasan N, Farzami B, Riazi GH, Hakimelahi GH, Tsai FY, Ahmad F, Amani M, Saboury AA. The Effects of Deferiprone and Deferasirox on the Structure and Function of β-Thalassemia Hemoglobin. J Biomol Struct Dyn 2009; 27:319-39. [DOI: 10.1080/07391102.2009.10507319] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
18
|
Mandal P, Ganguly T. Fluorescence Spectroscopic Characterization of the Interaction of Human Adult Hemoglobin and Two Isatins, 1-Methylisatin and 1-Phenylisatin: A Comparative Study. J Phys Chem B 2009; 113:14904-13. [DOI: 10.1021/jp9062115] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Paulami Mandal
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Tapan Ganguly
- Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| |
Collapse
|
19
|
Chakraborty D, Bhattacharyya M. Antioxidant defense status of red blood cells of patients with beta-thalassemia and Ebeta-thalassemia. Clin Chim Acta 2001; 305:123-9. [PMID: 11249931 DOI: 10.1016/s0009-8981(00)00428-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Anemia in beta-thalassemia is caused by a combination of ineffective erythropoiesis and premature hemolysis of RBC in the peripheral circulation. Excess of the alpha-globin chain present in beta-thalassemic RBC is mainly responsible for oxidative damage of erythrocyte membrane protein. The activities of glucose-6-phosphate dehydrogenase, glutathione reductase, glutathione peroxidase, and glutathione-S-transferase, and the catalytic activity of catalase and superoxide dismutase, and the concentrations of non-enzymic antioxidants such as reduced glutathione were measured to estimate the status of the antioxidant defense system in the erythrocytes for protection against oxidative stress. The extent of lipid peroxidation was also estimated in thalassemic erythrocytes. Significantly lower activities of reduced glutathione indicate the cell to be in a pro-oxidant state and decreased activity of catalase favors hydrogen peroxide-mediated lipid peroxidation in beta-thalassemic and Ebeta-thalassemic RBC.
Collapse
Affiliation(s)
- D Chakraborty
- Department of Biochemistry, University College of Science, University of Calcutta, India
| | | |
Collapse
|