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Hu S, Lin S, Xu H, He X, Chen L, Feng Q, Sun N. Molecular Mechanisms of Iron Transport and Homeostasis Regulated by Antarctic Krill-Derived Heptapeptide-Iron Complex. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:7517-7532. [PMID: 38527166 DOI: 10.1021/acs.jafc.3c05812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
In this study, the molecular mechanisms of iron transport and homeostasis regulated by the Antarctic krill-derived heptapeptide-iron (LVDDHFL-iron) complex were explored. LVDDHFL-iron significantly increased the hemoglobin, serum iron, total iron binding capacity levels, and iron contents in the liver and spleen to normal levels, regulated the gene expressions of iron homeostasis, and enhanced in vivo antioxidant capacity in iron-deficiency anemia mice (P < 0.05). The results revealed that iron ions within LVDDHFL-iron can be transported via the heme transporter and divalent metal transporter-1, and the absorption of LVDDHFL-iron involved receptor-mediated endocytosis. We also found that the transport of LVDDHFL-iron across cells via phagocytosis was facilitated by the up-regulation of the high mobility group protein, heat shock protein β, and V-type proton ATPase subunit, accompanied by the regulatory mechanism of autophagy. These findings provided deeper understandings of the mechanism of LVDDHFL-iron facilitating iron absorption.
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Affiliation(s)
- Shengjie Hu
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Songyi Lin
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, P. R. China
- Engineering Research Center of Special Dietary Food, Education Department of Liaoning Province, Dalian 116034, P. R. China
| | - Haowei Xu
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Xueqing He
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Lei Chen
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Qi Feng
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, P. R. China
| | - Na Sun
- SKL of Marine Food Processing & Safety Control, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, P. R. China
- Engineering Research Center of Special Dietary Food, Education Department of Liaoning Province, Dalian 116034, P. R. China
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Kannampuzha S, Gopalakrishnan AV, Padinharayil H, Alappat RR, Anilkumar KV, George A, Dey A, Vellingiri B, Madhyastha H, Ganesan R, Ramesh T, Jayaraj R, Prabakaran DS. Onco-Pathogen Mediated Cancer Progression and Associated Signaling Pathways in Cancer Development. Pathogens 2023; 12:770. [PMID: 37375460 DOI: 10.3390/pathogens12060770] [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: 03/11/2023] [Revised: 05/20/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023] Open
Abstract
Infection with viruses, bacteria, and parasites are thought to be the underlying cause of about 8-17% of the world's cancer burden, i.e., approximately one in every five malignancies globally is caused by an infectious pathogen. Oncogenesis is thought to be aided by eleven major pathogens. It is crucial to identify microorganisms that potentially act as human carcinogens and to understand how exposure to such pathogens occur as well as the following carcinogenic pathways they induce. Gaining knowledge in this field will give important suggestions for effective pathogen-driven cancer care, control, and, ultimately, prevention. This review will mainly focus on the major onco-pathogens and the types of cancer caused by them. It will also discuss the major pathways which, when altered, lead to the progression of these cancers.
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Affiliation(s)
- Sandra Kannampuzha
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, India
| | - Abilash Valsala Gopalakrishnan
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, India
| | - Hafiza Padinharayil
- Jubilee Centre for Medical Research, Jubilee Mission Medical College and Research Institute, Thrissur 680596, India
| | - Reema Rose Alappat
- Jubilee Centre for Medical Research, Jubilee Mission Medical College and Research Institute, Thrissur 680596, India
- Post Graduate and Research Department of Zoology, Maharajas College, Ernakulam 682011, India
| | - Kavya V Anilkumar
- Jubilee Centre for Medical Research, Jubilee Mission Medical College and Research Institute, Thrissur 680596, India
- Post Graduate and Research Department of Zoology, Maharajas College, Ernakulam 682011, India
| | - Alex George
- Jubilee Centre for Medical Research, Jubilee Mission Medical College and Research Institute, Thrissur 680596, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, Kolkata 700073, India
| | - Balachandar Vellingiri
- Stem Cell and Regenerative Medicine/Translational Research, Department of Zoology, School of Basic Sciences, Central University of Punjab (CUPB), Bathinda 151401, India
| | - Harishkumar Madhyastha
- Department of Cardiovascular Physiology, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Raja Ganesan
- Institute for Liver and Digestive Diseases, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea
| | - Thiyagarajan Ramesh
- Department of Basic Medical Sciences, College of Medicine, Prince Sattam bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Rama Jayaraj
- Jindal Institute of Behavioral Sciences (JIBS), Jindal Global Institution of Eminence Deemed to Be University, Sonipat 131001, India
- Director of Clinical Sciences, Northern Territory Institute of Research and Training, Darwin, NT 0909, Australia
| | - D S Prabakaran
- Department of Radiation Oncology, College of Medicine, Chungbuk National University, Chungdae-ro 1, Seowon-gu, Cheongju 28644, Republic of Korea
- Department of Biotechnology, Ayya Nadar Janaki Ammal College, Srivilliputhur Main Road, Sivakasi 626124, India
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Elliott J. Therapeutics of managing reduced red cell mass associated with chronic kidney disease - Is there a case for earlier intervention? J Vet Pharmacol Ther 2023; 46:145-157. [PMID: 37036059 DOI: 10.1111/jvp.13127] [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: 02/08/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/11/2023]
Abstract
Reduced red cell mass is a poor prognostic indicator in chronic kidney disease (CKD) patients. Whilst overt anaemia impacts on the quality of life of patients with CKD, lowered red cell mass may also compromise oxygen delivery to proximal tubular cells and contribute to progressive kidney injury. Epidemiological data from cats with CKD support this hypothesis although controlled interventional studies involving drugs that raise red cell mass in trials designed to test this hypothesis are lacking in both human and veterinary medicine. Recombinant analogues of erythropoietin (EPO) are currently standard of care for human CKD patients where low red cell mass impacts on their quality of life. Resistance to EPO is encountered in 20% to 40% of patients treated, probably due to functional iron deficiency, reflecting the difficulties of managing iron deficiency associated with the chronic inflammation of CKD. Similar issues are likely faced in managing anaemia in feline CKD although published data on the use of human EPO analogues are limited as such treatment in cats risks antibody formation resulting in red cell aplasia and transfusion dependency and so is reserved for late stage cases only. This article reviews the recent alternative therapeutic approach to increase red cell mass using HIF-prolyl hydroxylase inhibitors and explains their mode of action and theoretical advantages over EPO analogues in the context of iron metabolism. The results of human clinical trials and the potential benefit of adopting this approach in feline CKD patients are discussed.
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Affiliation(s)
- Jonathan Elliott
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, NW1 0TU, UK
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Hypoxia-inducible factor signaling in vascular calcification in chronic kidney disease patients. J Nephrol 2022; 35:2205-2213. [PMID: 36208406 DOI: 10.1007/s40620-022-01432-8] [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: 03/11/2022] [Accepted: 08/02/2022] [Indexed: 10/10/2022]
Abstract
Chronic kidney disease (CKD) affects approximately 15% of the adult population in high-income countries and is associated with significant comorbidities, including increased vascular calcifications which is associated with a higher risk for cardiovascular events. Even though the underlying pathophysiology is unclear, hypoxia-inducible factor (HIF) signaling appears to play a central role in inflammation, angiogenesis, fibrosis, cellular proliferation, apoptosis and vascular calcifications which is influenced by multiple variables such as iron deficiency anemia, serum phosphorus and calcium levels, fibroblast growth factor-23 (FGF-23) and Klotho. Along with the growing understanding of the pathology, potential therapeutic alternatives have emerged including HIF stabilizers and SGLT-2 inhibitors. The aim of this review is to discuss the role of HIF signaling in the pathophysiology of vascular calcification in CKD patients and to identify potential therapeutic approaches.
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Song Z, Tang M, Tang G, Fu G, Ou D, Yao F, Hou X, Zhang D. Oral iron supplementation in patients with heart failure: a systematic review and meta-analysis. ESC Heart Fail 2022; 9:2779-2786. [PMID: 35758130 DOI: 10.1002/ehf2.14020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 03/19/2022] [Accepted: 06/03/2022] [Indexed: 11/07/2022] Open
Abstract
AIMS This review aimed to assess whether oral iron supplementation in a chronic heart failure (HF) population with iron deficiency (ID) or mild anaemia is safe and effective according to evidence-based medicine. METHODS We retrieved 1803 records from the PubMed, Embase, and the Cochrane Library databases from 1 January 1991 to 15 September 2021. The clinical outcome of oral iron supplementation for ID anaemia in patients with HF was the primary endpoint. The primary safety measures included adverse events and all-cause mortality, and efficacy measures included transferrin saturation (Tsat), ferritin levels, and the 6-min walk test (6MWT). The rate ratio (RR) was used to pool the efficacy measures. RESULTS Five randomized controlled trials that compared oral iron treatment for patients with the placebo group and included a combined total of 590 participants were analysed. No significant difference was found in all-cause death between oral iron treatment and placebo groups (RR = 0.77; 95% confidence intervals (CI), 0.46-1.29, Z = 0.98; P = 0.33). However, adverse events were not significantly higher in the iron treatment group (RR = 0.83; 95% CI, 0.60-1.16, Z = 1.07; P = 0.28). In addition, ferritin levels and Tsat were slightly increased after iron complex administration in patients with HF but were not statistically significant (ferritin: mean difference [MD] = 2.70, 95% CI, -2.41 to 7.81, Z = 1.04; P = 0.30; Tsat: MD = 27.42, 95% CI, -4.93 to 59.78, Z = 1.66; P = 0.10). No significant difference was found in exercise capacity, as indicated by the 6MWT results (MD = 59.60, 95% CI, -17.89 to 137.08, Z = 1.51; P = 0.13). We also analysed two non-randomized controlled trials with follow-up results showing that oral iron supplementation increased serum iron levels (MD = 28.87, 95% CI, 1.62-56.12, Z = 2.08; P = 0.04). CONCLUSIONS Based on the current findings, oral iron supplementation can increase serum iron levels in patients with HF and ID or mild anaemia but does not improve Tsat and 6MWT. In addition, oral iron supplementation is relatively safe.
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Affiliation(s)
- Zhiping Song
- Department of Cardiovascular Medicine, Yuechi County People's Hospital, Guang'an, China
| | - Mingyang Tang
- Geriatric Diseases Institute of Chengdu / Cancer Prevention and Treatment Institute of Chengdu, Department of Cardiology, Chengdu Fifth People's Hospital (The Second Clinical Medical College, Affiliated Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine), Chengdu, China
| | - Gang Tang
- Geriatric Diseases Institute of Chengdu / Cancer Prevention and Treatment Institute of Chengdu, Department of Cardiology, Chengdu Fifth People's Hospital (The Second Clinical Medical College, Affiliated Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine), Chengdu, China
| | - Guoqi Fu
- Geriatric Diseases Institute of Chengdu / Cancer Prevention and Treatment Institute of Chengdu, Department of Cardiology, Chengdu Fifth People's Hospital (The Second Clinical Medical College, Affiliated Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine), Chengdu, China
| | - Dengke Ou
- Geriatric Diseases Institute of Chengdu / Cancer Prevention and Treatment Institute of Chengdu, Department of Cardiology, Chengdu Fifth People's Hospital (The Second Clinical Medical College, Affiliated Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine), Chengdu, China
| | - Fengyou Yao
- Geriatric Diseases Institute of Chengdu / Cancer Prevention and Treatment Institute of Chengdu, Department of Cardiology, Chengdu Fifth People's Hospital (The Second Clinical Medical College, Affiliated Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine), Chengdu, China
| | - Xingzhi Hou
- Department of Cardiovascular Medicine, Yuechi County People's Hospital, Guang'an, China
| | - Denghong Zhang
- Geriatric Diseases Institute of Chengdu / Cancer Prevention and Treatment Institute of Chengdu, Department of Cardiology, Chengdu Fifth People's Hospital (The Second Clinical Medical College, Affiliated Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine), Chengdu, China
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Barakat H, Qureshi KA, Alsohim AS, Rehan M. The Purified Siderophore from Streptomyces tricolor HM10 Accelerates Recovery from Iron-Deficiency-Induced Anemia in Rats. Molecules 2022; 27:molecules27134010. [PMID: 35807259 PMCID: PMC9268400 DOI: 10.3390/molecules27134010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/16/2022] [Accepted: 06/19/2022] [Indexed: 02/06/2023] Open
Abstract
Iron-deficiency-induced anemia is associated with poor neurological development, including decreased learning ability, altered motor functions, and numerous pathologies. Siderophores are iron chelators with low molecular weight secreted by microorganisms. The proposed catechol-type pathway was identified based on whole-genome sequences and bioinformatics tools. The intended pathway consists of five genes involved in the biosynthesis process. Therefore, the isolated catechol-type siderophore (Sid) from Streptomyces tricolor HM10 was evaluated through an anemia-induced rat model to study its potential to accelerate recovery from anemia. Rats were subjected to an iron-deficient diet (IDD) for 42 days. Anemic rats (ARs) were then divided into six groups, and normal rats (NRs) fed a standard diet (SD) were used as a positive control group. For the recovery experiment, ARs were treated as a group I; fed an IDD (AR), group II; fed an SD (AR + SD), group III, and IV, fed an SD with an intraperitoneal injection of 1 μg Sid Kg-1 (AR + SD + Sid1) and 5 μg Sid Kg-1 (AR + SD + Sid5) twice per week. Group V and VI were fed an iron-enriched diet (IED) with an intraperitoneal injection of 1 μg Sid Kg-1 (AR + IED + Sid1) and 5 μg Sid Kg-1 (AR + IED + Sid5) twice per week, respectively. Weight gain, food intake, food efficiency ratio, organ weight, liver iron concentration (LIC) and plasma (PIC), and hematological parameters were investigated. The results showed that ~50-60 mg Sid L-1 medium could be producible, providing ~25-30 mg L-1 purified Sid under optimal conditions. Remarkably, the AR group fed an SD with 5 μg Sid Kg-1 showed the highest weight gain. The highest feed efficiency was observed in the AR + SD + Sid5 group, which did not significantly differ from the SD group. Liver, kidneys, and spleen weight indicated that diet and Sid concentration were related to weight recovery in a dose-dependent manner. Liver iron concentration (LIC) in the AR + IED + Sid1 and AR + IED + Sid5 groups was considerably higher than in the AR + SD + Sid1 AR + SD + Sid5 groups or the AR + SD group compared to the AR group. All hematological parameters in the treated groups were significantly closely attenuated to SD groups after 28 days, confirming the efficiency of the anemia recovery treatments. Significant increases were obtained in the AR + SD + Sid5 and AR + IED + Sid5 groups on day 14 and day 28 compared to the values for the AR + SD + Sid1 and AR + IED + Sid1 groups. The transferrin saturation % (TSAT) and ferritin concentration (FC) were significantly increased with time progression in the treated groups associatively with PIC. In comparison, the highest significant increases were noticed in ARs fed IEDs with 5 μg Kg-1 Sid on days 14 and 28. In conclusion, this study indicated that Sid derived from S. tricolor HM10 could be a practical and feasible iron-nutritive fortifier when treating iron-deficiency-induced anemia (IDA). Further investigation focusing on its mechanism and kinetics is needed.
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Affiliation(s)
- Hassan Barakat
- Department of Food Science and Human Nutrition, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah 51452, Saudi Arabia
- Department of Food Technology, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
- Correspondence: or ; Tel.: +966-547141277
| | - Kamal A. Qureshi
- Department of Pharmaceutics, Unaizah College of Pharmacy, Qassim University, Unaizah 51911, Saudi Arabia;
- Faculty of Biosciences and Biotechnology, Invertis University, Bareilly 243123, Uttar Pradesh, India
| | - Abdullah S. Alsohim
- Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah 51452, Saudi Arabia; (A.S.A.); (M.R.)
| | - Medhat Rehan
- Department of Plant Production and Protection, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah 51452, Saudi Arabia; (A.S.A.); (M.R.)
- Department of Genetics, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
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Stachowska L, Koziarska D, Karakiewicz B, Kotwas A, Knyszyńska A, Folwarski M, Dec K, Stachowska E, Hawryłkowicz V, Kulaszyńska M, Sołek-Pastuszka J, Skonieczna-Żydecka K. Hepcidin (rs10421768), Transferrin (rs3811647, rs1049296) and Transferrin Receptor 2 (rs7385804) Gene Polymorphism Might Be Associated with the Origin of Multiple Sclerosis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19116875. [PMID: 35682458 PMCID: PMC9180173 DOI: 10.3390/ijerph19116875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/30/2022] [Accepted: 06/02/2022] [Indexed: 02/07/2023]
Abstract
Multiple sclerosis (MS) is a demyelinating disease of the central nervous system in which there is a multifocal damage to the nerve tissue. Additionally, the literature emphasizes the excessive accumulation of iron in the central nervous system of patients, which is negatively correlated with their psychophysical fitness. Iron metabolism genes polymorphisms may modulate iron deposition in the body and thus affect the clinical course of MS. We aimed to assess the frequency of HAMP, TFR2, and TF polymorphisms in MS patients and their impact on the clinical course of the disease. The studied polymorphisms were identified by the Real-Time PCR using TaqMan technology. Neurological assessment by means of EDSS scale was conducted. This cross-sectional study included 176 patients, with the mean age of onset of symptoms at 30.6 years. The frequency of alleles of the studied polymorphisms was as follows: (a) HAMP rs10421768: A 75.9% (n = 267), G 24.1% (n = 65), (b) TF rs1049296: C 89.2% (n = 314), T 10.8% (n = 38), (c) TF rs3811647: A 39.8% (n = 140), G 60.2% (n = 212), (d) TFR2 rs7385804: A 59.1% (n = 59.1%), C 40.9% (n = 144). In the codominant inheritance model of TF rs1049269, it was shown that people with the CT genotype scored statistically significantly lower points in the EDSS scale at the time of diagnosis than those with the CC genotype (CC Me = 1.5, CT Me = 1.0 p = 0.0236). In the recessive model of TF inheritance rs3811647, it was noticed that the primary relapses were significantly more frequent in patients with at least one G allele compared with those with the AA genotype (AG + GG = 81.2%, AA = 18.8%, p = 0.0354). In the overdominant model rs7385804 TFR2, it was shown that among patients with the AA genotype, multiple sclerosis occurs significantly more often in relatives in a straight line compared with people with the AC and CC genotypes (AA = 100.0%, AC + CC = 0.0%, p = 0.0437). We concluded that the studied polymorphisms might affect the clinical course of MS.
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Affiliation(s)
- Laura Stachowska
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, Broniewskiego 24, 71-460 Szczecin, Poland; (L.S.); (K.D.); (E.S.); (V.H.)
| | - Dorota Koziarska
- Department of Neurology, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 72-252 Szczecin, Poland;
| | - Beata Karakiewicz
- Subdepartment of Social Medicine and Public Health Department of Social Medicine, Pomeranian Medical University in Szczecin, Żołnierska 48, 71-210 Szczecin, Poland; (B.K.); (A.K.)
| | - Artur Kotwas
- Subdepartment of Social Medicine and Public Health Department of Social Medicine, Pomeranian Medical University in Szczecin, Żołnierska 48, 71-210 Szczecin, Poland; (B.K.); (A.K.)
| | - Anna Knyszyńska
- Department of Functional Diagnostics and Physical Medicine, Pomeranian Medical University in Szczecin, 71-210 Szczecin, Poland;
| | - Marcin Folwarski
- Department of Clinical Nutrition and Dietetics, Medical University of Gdansk, 80-211 Gdańsk, Poland;
| | - Karolina Dec
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, Broniewskiego 24, 71-460 Szczecin, Poland; (L.S.); (K.D.); (E.S.); (V.H.)
| | - Ewa Stachowska
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, Broniewskiego 24, 71-460 Szczecin, Poland; (L.S.); (K.D.); (E.S.); (V.H.)
| | - Viktoria Hawryłkowicz
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, Broniewskiego 24, 71-460 Szczecin, Poland; (L.S.); (K.D.); (E.S.); (V.H.)
| | - Monika Kulaszyńska
- Department of Biochemical Science, Pomeranian Medical University in Szczecin, Broniewskiego 24, 71-460 Szczecin, Poland;
| | - Joanna Sołek-Pastuszka
- Department of Anaesthesiology and Intensive Therapy, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 72-252 Szczecin, Poland;
| | - Karolina Skonieczna-Żydecka
- Department of Biochemical Science, Pomeranian Medical University in Szczecin, Broniewskiego 24, 71-460 Szczecin, Poland;
- Correspondence:
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Neves JV, Barroso C, Carvalho P, Nunes M, Gonçalves JFM, Rodrigues PNS. Characterization of Erythroferrone in a Teleost Fish (Dicentrarchus labrax) With Two Functional Hepcidin Types: More Than an Erythroid Regulator. Front Immunol 2022; 13:867630. [PMID: 35464433 PMCID: PMC9024048 DOI: 10.3389/fimmu.2022.867630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/16/2022] [Indexed: 11/17/2022] Open
Abstract
Erythroferrone is a recently identified erythroid regulator produced by erythroblasts in the mammalian bone marrow and extramedullary sites, known to be induced in conditions of anemia or blood loss. Iron metabolism is affected by erythroferrone through its capacity to inhibit hepcidin production, leading to the increase of iron availability required for erythropoiesis. However, little is known about erythroferrone function in other vertebrates, in particular teleost fish, that unlike mammals, present two different functional types of hepcidin, one type mostly involved in iron metabolism and the other in antimicrobial response. The study of erythroferrone evolution and its biological role in teleost fish can give us valuably new insights into its function. To address these questions, we characterized erythroferrone in the European sea bass (Dicentrarchus labrax), a species presenting two hepcidin types, and evaluated variations in its expression levels in response to different experimental conditions. During experimental anemia, erythroferrone responds by increasing its expression and suppressing hepcidin production, following the pattern observed in mammals, but it is not influenced by iron overload. However, during bacterial infection, erythroferrone is downregulated and hepcidin levels increase. Furthermore, administration of Hamp1 but not of Hamp2 peptides suppresses erythroferrone expression. In conclusion, in dual hepcidin teleost fish erythroferrone seems to only interact with type 1 hepcidin, known to be involved in iron homeostasis, but not with type 2, which has an almost exclusive antimicrobial role.
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Affiliation(s)
- João V. Neves
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
- Iron and Innate Immunity, Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
- *Correspondence: João V. Neves, ; José F. M. Gonçalves,
| | - Carolina Barroso
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
- Iron and Innate Immunity, Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
- Programa Doutoral em Biologia Molecular e Celular (MCbiology), Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Pedro Carvalho
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Magda Nunes
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - José F. M. Gonçalves
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
- *Correspondence: João V. Neves, ; José F. M. Gonçalves,
| | - Pedro N. S. Rodrigues
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
- Iron and Innate Immunity, Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
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Husmann FMD, Stierli L, Bräm DS, Zeder C, Krämer SD, Zimmermann MB, Herter-Aeberli I. Kinetics of iron absorption from ferrous fumarate with and without galacto-oligosaccharides determined from stable isotope appearance curves in women. Am J Clin Nutr 2021; 115:949-957. [PMID: 34726703 PMCID: PMC8895218 DOI: 10.1093/ajcn/nqab361] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 10/25/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Prebiotic galacto-oligosaccharides (GOS) are novel enhancers of iron absorption from ferrous fumarate (FeFum). However, the mechanism(s) of this effect, and whether it occurs in the proximal or distal gut, are uncertain. OBJECTIVES We studied: 1) in vitro, the effect of GOS on iron solubility and dialyzability from FeFum; 2) in volunteers, the absorption kinetics of FeFum given with and without GOS using stable isotope appearance curves (SIAC). METHODS We measured iron solubility at various pH and dialyzability from FeFum with and without GOS. In crossover design, iron-depleted women [n = 11; median serum ferritin (SF) 15.2; IQR: 12.6-21.2 µg/L] received 2 14-mg iron doses as labeled (57Fe,58Fe) FeFum 14 d apart with and without 15 g GOS in randomly assigned order. Multiple blood samples were collected over a time period of 24 h and 14 d later to determine SIAC and fractional iron absorption (FIA), respectively. SIAC data were fitted using nonlinear mixed effects modeling to a 1-compartment model with first-order absorption, and AUC and time of peak serum isotope concentration (tmax) were calculated. RESULTS Iron dialyzability was 75% higher with GOS (P < 0.001) and iron solubility was more than doubled at pH 4 and 6 with GOS [both P < 0.001]. Mean ± SD AUC (5830.9 ± 4717.3 μg/min with GOS, 4454.0 ± 3260.7 μg/min for control), and median (IQR) FIA (20.3% (8.6%-38.7%) with GOS, and 15.6% (10.6%-24.8% f)or control) were not different with compared to without GOS (P = 0.064; P = 0.080). Mean ±SD tmax was not altered with GOS (3.08 ± 0.47 h with GOS; 2.80 ±0.50 h for control; P = 0.096). Iron bioavailability significantly increased with decreasing SF and this effect was significantly enhanced by GOS (P = 0.037, interaction of GOS with SF). CONCLUSIONS GOS increases iron solubility from FeFum at physiological pH characteristic of the proximal duodenum. The absorption kinetics in vivo are consistent with effects on iron absorption in the proximal, rather than distal, parts of the gut. There was no overall effect of GOS on FIA in vivo, but the interaction of GOS and SF on FIA might benefit iron-deficient women, an effect potentially mediated by the higher solubility shown in vitro. This study was registered at clinicaltrials.gov as NCT03996421.
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Affiliation(s)
- Frederike M D Husmann
- Laboratory of Human Nutrition, Institute of Food, Nutrition and Health, ETH Zurich, Switzerland
| | - Laura Stierli
- Laboratory of Human Nutrition, Institute of Food, Nutrition and Health, ETH Zurich, Switzerland
| | - Dominic S Bräm
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Switzerland
| | - Christophe Zeder
- Laboratory of Human Nutrition, Institute of Food, Nutrition and Health, ETH Zurich, Switzerland
| | - Stefanie D Krämer
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Switzerland
| | - Michael B Zimmermann
- Laboratory of Human Nutrition, Institute of Food, Nutrition and Health, ETH Zurich, Switzerland
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10
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Mirzaei H, Sharafati Chaleshtori R. Role of fermented goat milk as a nutritional product to improve anemia. J Food Biochem 2021; 46:e13969. [PMID: 34658048 DOI: 10.1111/jfbc.13969] [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: 05/30/2021] [Revised: 09/14/2021] [Accepted: 09/30/2021] [Indexed: 10/20/2022]
Abstract
Goat milk, like cow milk, needs some modifications to be used as the sole source of nutrition during early infancy. For goat milk to be more like human milk and more nutritionally complete, sugar, vitamins and minerals need to be added to it and for reduction of renal solute load, it needs to be diluted. To prevent megaloblastic anemia in infants fed exclusively on goat milk, folic acid should be supplied either by adding it to goat milk or by an oral folic acid supplement. In fortification of milk products, thermal processing, fermentation, and species differences in milk folate bioavailability are three additional factors that should be considered besides absolute difference in folate concentration between goat and human milk. Whether different feeding regimes (e.g., iron and folate content of diets) influence milk folate content needs to be elucidated by more research. Our findings showed that fermented goat milk during anemia recovery can be improve antioxidant status, protection from oxidative damage to biomolecules, protective effects on testis, improve Fe and skeletal muscle homeostasis as well as improve cardiovascular health. PRACTICAL APPLICATIONS: To be used as part of a postweaning nutritionally well-balanced diet, fermented goat milk is most likely an excellent source of nutrition for the human.
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Affiliation(s)
- Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.,Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Reza Sharafati Chaleshtori
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
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11
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Barroso C, Carvalho P, Nunes M, Gonçalves JFM, Rodrigues PNS, Neves JV. The Era of Antimicrobial Peptides: Use of Hepcidins to Prevent or Treat Bacterial Infections and Iron Disorders. Front Immunol 2021; 12:754437. [PMID: 34646277 PMCID: PMC8502971 DOI: 10.3389/fimmu.2021.754437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/13/2021] [Indexed: 12/30/2022] Open
Abstract
The current treatments applied in aquaculture to limit disease dissemination are mostly based on the use of antibiotics, either as prophylactic or therapeutic agents, with vaccines being available for a limited number of fish species and pathogens. Antimicrobial peptides are considered as promising novel substances to be used in aquaculture, due to their antimicrobial and immunomodulatory activities. Hepcidin, the major iron metabolism regulator, is found as a single gene in most mammals, but in certain fish species, including the European sea bass (Dicentrarchus labrax), two different hepcidin types are found, with specialized roles: the single type 1 hepcidin is involved in iron homeostasis trough the regulation of ferroportin, the only known iron exporter; and the various type 2 hepcidins present antimicrobial activity against a number of different pathogens. In this study, we tested the administration of sea bass derived hepcidins in models of infection and iron overload. Administration with hamp2 substantially reduced fish mortalities and bacterial loads, presenting itself as a viable alternative to the use of antibiotics. On the other hand, hamp1 seems to attenuate the effects of iron overload. Further studies are necessary to test the potential protective effects of hamp2 against other pathogens, as well as to understand how hamp2 stimulate the inflammatory responses, leading to an increased fish survival upon infection.
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Affiliation(s)
- Carolina Barroso
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Iron and Innate Immunity, IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.,Programa Doutoral em Biologia Molecular e Celular (MCbiology), ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Pedro Carvalho
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Magda Nunes
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - José F M Gonçalves
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Pedro N S Rodrigues
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Iron and Innate Immunity, IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.,ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - João V Neves
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Iron and Innate Immunity, IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.,ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
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12
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Sumi K, Munakata K, Konno S, Ashida K, Nakazato K. Inorganic Iron Supplementation Rescues Hematological Insufficiency Even Under Intense Exercise Training in a Mouse Model of Iron Deficiency with Anemia. Biol Trace Elem Res 2021; 199:2945-2960. [PMID: 33025520 DOI: 10.1007/s12011-020-02402-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 09/18/2020] [Indexed: 10/23/2022]
Abstract
Iron deficiency anemia (IDA) due to malnutrition and/or blood loss is a common condition, especially in women of reproductive age. Intense exercise can induce anemia via an inflammatory response, but whether intense exercise affects the efficacy of iron supplementation to treat IDA is unclear. Here, we show in a mouse model of IDA that acute intense swimming increased IL-6 levels in the blood, but did not affect the maximum elevation of plasma iron following oral administration of 0.5 mg/kg Bw iron. However, compared with the control group without intense exercise, acute intense swimming was associated with a significant decrease in plasma iron 2 and 4 h after iron loading that could be attributed to rapid iron absorption in peripheral tissues. In the chronic experiment, IDA mice administered 0.36, 1.06, or 3.2 mg/kg Bw iron per day that were subjected to 11 intense swimming sessions over 3 weeks showed significantly decreased recovery levels for hemoglobin and red blood cell count during the early phase of the experimental period. At the end of the experimental period, significant, dose-dependent effects of iron, but not the main effect of intense exercise, were seen for recovery of hemoglobin and red blood cell counts, consistent with the acute exercise study. These results suggested that intense exercise in the presence of IDA does not inhibit iron absorption from the gastrointestinal tract and that iron supplementation can enhance the recovery process even after intense exercise.
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Affiliation(s)
- Koichiro Sumi
- Food Microbiology and Function Research Laboratories, R&D Division, Meiji Co., Ltd., 1-29-1 Nanakuni, Hachiouji, Tokyo, 192-0919, Japan.
| | - Kinuyo Munakata
- Food Microbiology and Function Research Laboratories, R&D Division, Meiji Co., Ltd., 1-29-1 Nanakuni, Hachiouji, Tokyo, 192-0919, Japan
| | - Saori Konno
- Food Microbiology and Function Research Laboratories, R&D Division, Meiji Co., Ltd., 1-29-1 Nanakuni, Hachiouji, Tokyo, 192-0919, Japan
| | - Kinya Ashida
- Food Microbiology and Function Research Laboratories, R&D Division, Meiji Co., Ltd., 1-29-1 Nanakuni, Hachiouji, Tokyo, 192-0919, Japan
| | - Koichi Nakazato
- Department of Exercise Physiology, Nippon Sport Science University, 7-1-1 Fukasawa, Setagaya-ku, Tokyo, Japan
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13
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Sanyear C, Butthep P, Eamsaard W, Fucharoen S, Svasti S, Masaratana P. Iron homeostasis in a mouse model of thalassemia intermedia is altered between adolescence and adulthood. PeerJ 2020; 8:e8802. [PMID: 32219031 PMCID: PMC7085893 DOI: 10.7717/peerj.8802] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 02/25/2020] [Indexed: 01/03/2023] Open
Abstract
Background Iron overload is one of common complications of β-thalassemia. Systemic iron homeostasis is regulated by iron-regulatory hormone, hepcidin, which inhibits intestinal iron absorption and iron recycling by reticuloendothelial system. In addition, body iron status and requirement can be altered with age. In adolescence, iron requirement is increased due to blood volume expansion and growth spurt. Heterozygous β-globin knockout mice (Hbbth3/+; BKO) is a mouse model of thalassemia widely used to study iron homeostasis under this pathological condition. However, effects of age on iron homeostasis, particularly the expression of genes involved in hemoglobin metabolism as well as erythroid regulators in the spleen, during adolescence have not been explored in this mouse model. Methods Iron parameters as well as the mRNA expression of hepcidin and genes involved in iron transport and metabolism in wildtype (WT) and BKO mice during adolescence (6–7 weeks old) and adulthood (16–20 weeks old) were analyzed and compared by 2-way ANOVA. Results The transition of adolescence to adulthood was associated with reductions in duodenal iron transporter mRNA expression and serum iron levels of both WT and BKO mice. Erythrocyte parameters in BKO mice remained abnormal in both age groups despite persistent induction of genes involved in hemoglobin metabolism in the spleen and progressively increased extramedullary erythropiesis. In BKO mice, adulthood was associated with increased liver hepcidin and ferroportin mRNA expression along with splenic erythroferrone mRNA suppression compared to adolescence. Conclusion Our results demonstrate that iron homeostasis in a mouse model of thalassemia intermedia is altered between adolescence and adulthood. The present study underscores the importance of the age of thalassemic mice in the study of molecular or pathophysiological changes under thalassemic condition.
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Affiliation(s)
- Chanita Sanyear
- Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Punnee Butthep
- Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Wiraya Eamsaard
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Suthat Fucharoen
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Bangkok, Thailand
| | - Saovaros Svasti
- Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Bangkok, Thailand
| | - Patarabutr Masaratana
- Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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14
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Suehiro D, Kawase H, Uehara S, Kawase R, Fukami K, Nakagawa T, Shimada M, Hayakawa T. Maltobionic acid accelerates recovery from iron deficiency-induced anemia in rats. Biosci Biotechnol Biochem 2019; 84:393-401. [PMID: 31608802 DOI: 10.1080/09168451.2019.1676694] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In experiments 1 and 2, effect of ingestion of maltobionic acid calcium salt (MBCa) on recovery of rats from a latent iron deficiency and from iron deficiency anemia was examined, respectively. After grouping rats into control and iron-deficiency groups, a latent iron deficiency or iron-deficiency anemia was induced in the latter group. And recovery from these states by MBCa containing diets (0%, 3%, and 6% MBCa in diet, classified into MBCa-0, MBCa-3, and MBCa-6 groups) was compared for convalescence period in light of iron sufficient control group. In experiment 1, MBCa ingestion significantly increased the iron concentration in the serum and liver, and promoted recovery from a latent iron deficiency. In experiment 2, hemoglobin and hematocrit levels increased significantly with MBCa intake, and recovery from iron-deficiency anemia was promoted. MBCa effectively promoted the recovery of rats from a subclinical iron deficiency and iron-deficiency anemia.Abbreviations: ANOVA: analysis of variance; DMT1: divalent metal transporter 1; EDTA-2Na: disodium salt of ethylenediaminetetraacetic acid; Fpn: feroportin; Hb: hemoglobin; Ht: hematocrit; ICP-OES: inductivity coupled plasma optical emission spectrometer; MBCa: maltobionic acid calcium salt; nitroso-PSAP: 2-nitroso-5-[N-n-propyl-N-(3-sulfopropyl)amino]phenol; SE: standard error; SI: serum-iron concentration; TSAT: transferrin saturation; TIBC: total iron-binding capacity; UIBC: unsaturated iron-binding capacity.
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Affiliation(s)
| | - Haruka Kawase
- The Graduate School of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Sumire Uehara
- The Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan
| | - Rio Kawase
- The Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan
| | - Ken Fukami
- San-ei Sucrochemical Co., Ltd., Chita, Japan
| | - Tomoyuki Nakagawa
- The Graduate School of Applied Biological Sciences, Gifu University, Gifu, Japan.,The Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan
| | - Masaya Shimada
- The Graduate School of Applied Biological Sciences, Gifu University, Gifu, Japan.,The Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan
| | - Takashi Hayakawa
- The Graduate School of Applied Biological Sciences, Gifu University, Gifu, Japan.,The Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan
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15
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Paterek A, Mackiewicz U, Mączewski M. Iron and the heart: A paradigm shift from systemic to cardiomyocyte abnormalities. J Cell Physiol 2019; 234:21613-21629. [DOI: 10.1002/jcp.28820] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Aleksandra Paterek
- Department of Clinical Physiology Centre of Postgraduate Medical Education Warsaw Poland
| | - Urszula Mackiewicz
- Department of Clinical Physiology Centre of Postgraduate Medical Education Warsaw Poland
| | - Michał Mączewski
- Department of Clinical Physiology Centre of Postgraduate Medical Education Warsaw Poland
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16
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Anti-hyperalgesia effect of nanchelating based nano particle, RAc1, can be mediated via liver hepcidin expression modulation during persistent inflammation. Int Immunopharmacol 2019; 69:337-346. [DOI: 10.1016/j.intimp.2019.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/14/2019] [Accepted: 02/03/2019] [Indexed: 12/13/2022]
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17
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Gabr SA, Gabr NS, Elsaed WM. Protective Activity of Taurine and Molecular Fibrogenesis in Iron Overloaded Hepatic Tissues. INT J PHARMACOL 2019. [DOI: 10.3923/ijp.2019.418.427] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Li B, He H, Shi W, Hou T. Effect of duck egg white peptide-ferrous chelate on iron bioavailability in vivo and structure characterization. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:1834-1841. [PMID: 30255570 DOI: 10.1002/jsfa.9377] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/05/2018] [Accepted: 09/17/2018] [Indexed: 05/13/2023]
Abstract
BACKGROUND In order to utilize the industrial by-product 'salted duck egg white' as novel iron additives, the effects of desalted duck egg white peptides-ferrous chelate (DPs-Fe) on the promotion of iron uptake and the structure were investigated. RESULTS Different doses of DPs-Fe were given and iron sulfate (FeSO4 ) was used as a positive control. After three weeks, hemoglobin (Hb), hematocrit (HCT), red blood cells (RBCs), mean corpuscular volume (MCV), serum iron (SI) and serum ferritin (SF) in iron-deficiency anemia (IDA) rats could be significantly (P < 0.05) increased to the normal levels by DPs-Fe. The gene expressions of divalent metal transporter 1 (DMT1), ferroportin 1 (FPN1) and Hepcidin could be regulated by DPs-Fe. Additionally, DPs-Fe was formed during the chelation process and the structure was characterized. Eight crucial iron-chelating peptides of duck egg white peptides (DPs) were identified by HPLC-ESI-MS/MS, such as Pro-Val-Glu-Glu and Arg-Ser-Ser. It indicated that Glu, Asp, Lys, His, Ser, Cys residues might play crucial roles in the chelating of DPs with iron. CONCLUSION DPs-Fe could be a potential iron supplement, and the Glu, Asp, Lys, His played important roles in binding iron and promoting iron uptake. This research expands the understanding of iron uptake by DPs and provides an opportunity for recycling a discarded processing byproduct. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Bo Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, PR China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University), Ministry of Education, Wuhan, PR China
| | - Hui He
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, PR China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University), Ministry of Education, Wuhan, PR China
| | - Wen Shi
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, PR China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University), Ministry of Education, Wuhan, PR China
| | - Tao Hou
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, PR China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University), Ministry of Education, Wuhan, PR China
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19
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Is Body Mass Index a potential biomarker for anemia in obese adolescents? JOURNAL OF NUTRITION & INTERMEDIARY METABOLISM 2019. [DOI: 10.1016/j.jnim.2018.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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20
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Segrestin B, Moreno-Navarrete JM, Seyssel K, Alligier M, Meugnier E, Nazare JA, Vidal H, Fernandez-Real JM, Laville M. Adipose Tissue Expansion by Overfeeding Healthy Men Alters Iron Gene Expression. J Clin Endocrinol Metab 2019; 104:688-696. [PMID: 30260393 DOI: 10.1210/jc.2018-01169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 09/20/2018] [Indexed: 02/13/2023]
Abstract
CONTEXT Iron overload has been associated with greater adipose tissue (AT) depots. We retrospectively studied the potential interactions between iron and AT during an experimental overfeeding in participants without obesity. METHODS Twenty-six participants (mean body mass index ± SD, 24.7 ± 3.1 kg/m2) underwent a 56-day overfeeding (+760 kcal/d). Serum iron biomarkers (ELISA), subcutaneous AT (SAT) gene expression, and abdominal AT distribution assessed by MRI were analyzed at the beginning and the end of the intervention. RESULTS Before intervention: SAT mRNA expression of the iron transporter transferrin (Tf) was positively correlated with the expression of genes related to lipogenesis (lipin 1, ACSL1) and lipid storage (SCD). SAT expression of the ferritin light chain (FTL) gene, encoding ferritin (FT), an intracellular iron storage protein, was negatively correlated to SREBF1, a gene related to lipogenesis. Serum FT (mean, 92 ± 57 ng/mL) was negatively correlated with the expression of SAT genes linked to lipid storage (SCD, DGAT2) and to lipogenesis (SREBF1, ACSL1). After intervention: Overfeeding led to a 2.3 ± 1.3-kg weight gain. In parallel to increased expression of lipid storage-related genes (mitoNEET, SCD, DGAT2, SREBF1), SAT Tf, SLC40A1 (encoding ferroportin 1, a membrane iron export channel) and hephaestin mRNA levels increased, whereas SAT FTL mRNA decreased, suggesting increased AT iron requirement. Serum FT decreased to 67 ± 43 ng/mL. However, no significant associations between serum iron biomarkers and AT distribution or expansion were observed. CONCLUSION In healthy men, iron metabolism gene expression in SAT is associated with lipid storage and lipogenesis genes expression and is modulated during a 56-day overfeeding diet.
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Affiliation(s)
- Berenice Segrestin
- Univ-Lyon, CarMeN Laboratory, and Centre de Recherche en Nutrition Humaine Rhône-Alpes, Université Claude Bernard Lyon1, Pierre Benite, France
- Eating Disorder Unit, Groupe Hospitalier Est, Hospices Civils de Lyon, Bron, France
| | - José Maria Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute, Hospital Universitari de Girona Dr Josep Trueta, Departament de Medicina, Universitat de Girona, CIBER Fisiopatologia de la Obesidad y Nutricion, Girona, Spain
| | - Kevin Seyssel
- Univ-Lyon, CarMeN Laboratory, and Centre de Recherche en Nutrition Humaine Rhône-Alpes, Université Claude Bernard Lyon1, Pierre Benite, France
| | - Maud Alligier
- Univ-Lyon, CarMeN Laboratory, and Centre de Recherche en Nutrition Humaine Rhône-Alpes, Université Claude Bernard Lyon1, Pierre Benite, France
- F-CRIN/FORCE Network, Pierre Bénite, France
| | - Emmanuelle Meugnier
- Univ-Lyon, CarMeN Laboratory, and Centre de Recherche en Nutrition Humaine Rhône-Alpes, Université Claude Bernard Lyon1, Pierre Benite, France
| | - Julie-Anne Nazare
- Univ-Lyon, CarMeN Laboratory, and Centre de Recherche en Nutrition Humaine Rhône-Alpes, Université Claude Bernard Lyon1, Pierre Benite, France
| | - Hubert Vidal
- Univ-Lyon, CarMeN Laboratory, and Centre de Recherche en Nutrition Humaine Rhône-Alpes, Université Claude Bernard Lyon1, Pierre Benite, France
| | - José Manuel Fernandez-Real
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute, Hospital Universitari de Girona Dr Josep Trueta, Departament de Medicina, Universitat de Girona, CIBER Fisiopatologia de la Obesidad y Nutricion, Girona, Spain
| | - Martine Laville
- Univ-Lyon, CarMeN Laboratory, and Centre de Recherche en Nutrition Humaine Rhône-Alpes, Université Claude Bernard Lyon1, Pierre Benite, France
- Endocrinology, Diabetes, and Nutrition Department, Groupe Hospitalier Sud, Hospices Civils de Lyon, Pierre Benite, France
- F-CRIN/FORCE Network, Pierre Bénite, France
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21
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Angmo S, Rana S, Yadav K, Sandhir R, Singhal NK. Novel Liposome Eencapsulated Guanosine Di Phosphate based Therapeutic Target against Anemia of Inflammation. Sci Rep 2018; 8:17684. [PMID: 30523271 PMCID: PMC6283875 DOI: 10.1038/s41598-018-35992-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 10/29/2018] [Indexed: 12/20/2022] Open
Abstract
Hepcidin, master regulator of iron homeostasis, causes anemia under infectious and inflammatory conditions by reducing intestinal absorption of iron with decreased release of iron from macrophages and liver despite adequate iron stores leading to Anemia of Inflammation (AI). Many therapeutic trials have been carried out but none have been effective due to its adverse effects. In present study, we discover that Guanosine 5'-diphosphate (GDP) encapsulated in lipid vesicle (NH+) was found to inhibit NF-ҝB activation by limiting phosphorylation and degradation of IҝBα, thus, attenuating IL-6 secretion from macrophage cells. Moreover, the suppressed IL-6 levels down regulated JAK2/STAT3 pathway with decrease inflammation-mediated Hamp mRNA transcription (HepG2) and increase iron absorption (Caco2) in HepG2/Caco2 co-culture model. Analogous results were obtained in acute and chronic AI mice model thus, correcting haemoglobin level. These results proved NH + GDP as novel therapeutic agent to overcome limitations and suggests it as potential drug to ameliorate AI.
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Affiliation(s)
- Stanzin Angmo
- Food Science and Technology Department, National Agri-Food Biotechnology Institute (NABI) Sector-81(Knowledge City), PO Manauli, S.A.S. Nagar, Mohali, 140306, Punjab, India
| | - Shilpa Rana
- Food Science and Technology Department, National Agri-Food Biotechnology Institute (NABI) Sector-81(Knowledge City), PO Manauli, S.A.S. Nagar, Mohali, 140306, Punjab, India
| | - Kamalendra Yadav
- Food Science and Technology Department, National Agri-Food Biotechnology Institute (NABI) Sector-81(Knowledge City), PO Manauli, S.A.S. Nagar, Mohali, 140306, Punjab, India
| | - Rajat Sandhir
- Department of Biochemistry, Panjab University, 160014, Chandigarh, India
| | - Nitin Kumar Singhal
- Food Science and Technology Department, National Agri-Food Biotechnology Institute (NABI) Sector-81(Knowledge City), PO Manauli, S.A.S. Nagar, Mohali, 140306, Punjab, India.
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22
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Han L, Liu Y, Lu M, Wang H, Tang F. Retinoic acid modulates iron metabolism imbalance in anemia of inflammation induced by LPS via reversely regulating hepcidin and ferroportin expression. Biochem Biophys Res Commun 2018; 507:280-285. [DOI: 10.1016/j.bbrc.2018.11.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 11/05/2018] [Indexed: 12/13/2022]
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23
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de Lima Correia Silva M, da Graça Leite Speridião P, Oyama LM, de Morais MB. Effect of fructo-oligosaccharide supplementation in soya beverage on the intestinal absorption of calcium and iron in newly weaned rats. Br J Nutr 2018; 120:1338-1348. [PMID: 30499425 DOI: 10.1017/s0007114518002714] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Studies have shown the positive effects of prebiotics on the intestinal absorption of Ca and Fe. The present study evaluated the effect of fructo-oligosaccharide (FOS) supplementation in soya beverage (SB) on absorption mechanisms of Ca and Fe in recently weaned rats. Male Wistar rats were divided into four groups: lactose-free cows' milk (CM), lactose-free CM with FOS (0·8 g/100 ml) (CMF), SB and soya beverage with FOS (0·8 g/100 ml) (SBF). These rats were euthanised after 1 week of treatment. Organ weight, pH of the caecal content and absorption mechanisms of Ca and Fe were evaluated. The results showed that the weight of the caecal contents increased in the CMF and SBF groups, and the pH of the caecal contents was lower in these groups. The Hb levels of the CMF and SB groups were higher when compared with that of the CM group and lower in relation to the SBF group. The apparent Ca and Fe absorption and apparent Ca retention in the CM group were higher when compared with the SB group, whereas in the CMF group, they were higher in relation to the SBF group. Divalent metal transporter 1 (DMT1) protein expression in the duodenum was higher in the SBF group than in the SB and CMF groups. SB resulted in lower intestinal Ca absorption and higher Hb concentration, despite the lower apparent Fe absorption in relation to CM. Supplementation with FOS provided beneficial effects on Hb and DMT1 protein expression in the duodenum, in addition to improving the absorption process.
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Affiliation(s)
- Maisa de Lima Correia Silva
- 1Departamento de Pediatria,Disciplina de Gastroenterologia Pediátrica,Universidade Federal de São Paulo,Rua Coronel Lisboa826,04020-000 São Paulo,SP,Brazil
| | - Patrícia da Graça Leite Speridião
- 1Departamento de Pediatria,Disciplina de Gastroenterologia Pediátrica,Universidade Federal de São Paulo,Rua Coronel Lisboa826,04020-000 São Paulo,SP,Brazil
| | - Lila Missae Oyama
- 2Departamento de Fisiologia,Disciplina de Fisiologia da Nutrição,Universidade Federal de São Paulo,Rua Botucatu 862,2° andar,04023-060 São Paulo,SP, Brazil
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24
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Petkus DL, Murray-Kolb LE, De Souza MJ. The Unexplored Crossroads of the Female Athlete Triad and Iron Deficiency: A Narrative Review. Sports Med 2018; 47:1721-1737. [PMID: 28290159 DOI: 10.1007/s40279-017-0706-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Despite the severity and prevalence of iron deficiency in exercising women, few published reports have explored how iron deficiency interacts with another prevalent and severe condition in exercising women: the 'female athlete triad.' This review aims to describe how iron deficiency may interact with each component of the female athlete triad, that is, energy status, reproductive function, and bone health. The effects of iron deficiency on energy status are discussed in regards to thyroid function, metabolic fuel availability, eating behaviors, and energy expenditure. The interactions between iron deficiency and reproductive function are explored by discussing the potentially impaired fertility and hyperprolactinemia due to iron deficiency and the alterations in iron metabolism due to menstrual blood loss and estrogen exposure. The interaction of iron deficiency with bone health may occur via dysregulation of the growth hormone/insulin-like growth factor-1 axis, hypoxia, and hypothyroidism. Based on these discussions, several future directions for research are presented.
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Affiliation(s)
- Dylan L Petkus
- Department of Kinesiology, The Pennsylvania State University, 104 Noll Laboratory, University Park, PA, 16802, USA
| | - Laura E Murray-Kolb
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Mary Jane De Souza
- Department of Kinesiology, The Pennsylvania State University, 104 Noll Laboratory, University Park, PA, 16802, USA.
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25
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Jiang S, Yan K, Sun B, Gao S, Yang X, Ni Y, Ma W, Zhao R. Long-Term High-Fat Diet Decreases Hepatic Iron Storage Associated with Suppressing TFR2 and ZIP14 Expression in Rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:11612-11621. [PMID: 30350980 DOI: 10.1021/acs.jafc.8b02974] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
High-fat diet-induced obesity is known to disturb hepatic iron metabolism in a time-dependent manner. The mechanism of decreased hepatic iron deposits induced by long-term high-fat diet needs to be further investigated. In this study, 24 6-week-old male Sprague-Dawley rats were given a 16-week high-fat diet and hepatic iron metabolism was examined. High-fat diet feeding considerably decreased hepatic iron contents, enhanced transferrin expression, and reduced the expression of ferritin heavy chain, ferritin light chain, and hepatic iron uptake-related proteins (transferrin receptor 2, TFR2, and ZRT/IRT-like protein 14, ZIP14) in rats. Impaired expression of hepatic TFR2 coincided with DNA hypermethylation on the promoter and repressed expression of transcription factor hepatocyte nuclear factor 4α (HNF4α). miR-181 family expression was markedly increased and verified to regulate Zip14 expression by the dual-luciferase reporter system. Taken together, long-term high-fat diet decreases hepatic iron storage, which is closely linked to inhibition of liver iron transport through the TFR2 and ZIP14-dependent pathway.
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Affiliation(s)
- Shuxia Jiang
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Kai Yan
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Bo Sun
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Shixing Gao
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Xiaojing Yang
- MOE Joint International Research Laboratory of Animal Health & Food Safety , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Yingdong Ni
- MOE Joint International Research Laboratory of Animal Health & Food Safety , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Wenqiang Ma
- MOE Joint International Research Laboratory of Animal Health & Food Safety , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Ruqian Zhao
- MOE Joint International Research Laboratory of Animal Health & Food Safety , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
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26
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Severe Iron Metabolism Defects in Mice With Double Knockout of the Multicopper Ferroxidases Hephaestin and Ceruloplasmin. Cell Mol Gastroenterol Hepatol 2018; 6:405-427. [PMID: 30182051 PMCID: PMC6120670 DOI: 10.1016/j.jcmgh.2018.06.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 06/19/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND & AIMS Multicopper ferroxidases (MCFs) facilitate intestinal iron absorption and systemic iron recycling, likely by a mechanism involving the oxidization of Fe2+ from the iron exporter ferroportin 1 for delivery to the circulating Fe3+ carrier transferrin. Hephaestin (HEPH), the only MCF known to be expressed in enterocytes, aids in the basolateral transfer of dietary iron to the blood. Mice lacking HEPH in the whole body (Heph-/- ) or intestine alone (Hephint/int ) exhibit defects in dietary iron absorption but still survive and grow. Circulating ceruloplasmin (CP) is the only other known MCF likely to interact with enterocytes. Our aim was to assess the effects of combined deletion of HEPH and CP on intestinal iron absorption and homeostasis in mice. METHODS Mice lacking both HEPH and CP (Heph-/-Cp-/- ) and mice with whole-body knockout of CP and intestine-specific deletion of HEPH (Hephint/intCp-/- ) were generated and phenotyped. RESULTS Heph-/-Cp-/- mice were severely anemic and had low serum iron, but they exhibited marked iron loading in duodenal enterocytes, the liver, heart, pancreas, and other tissues. Hephint/intCp-/- mice were moderately anemic (similar to Cp-/- mice) but were iron loaded only in the duodenum and liver, as in Hephint/int and Cp-/- mice, respectively. Both double knockout models absorbed iron in radiolabeled intestinal iron absorption studies, but the iron was inappropriately distributed, with an abnormally high percentage retained in the liver. CONCLUSIONS These studies indicate that HEPH and CP, and likely MCFs in general, are not essential for intestinal iron absorption but are required for proper systemic iron distribution. They also point to important extra-intestinal roles for HEPH in maintaining whole-body iron homeostasis.
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Key Words
- CP, ceruloplasmin
- Cp-/-, mice lacking CP in the whole body
- DAB, 3,3′-diaminobenzidine
- FDR, false discovery rate
- FPN1, ferroportin 1
- GI, gastrointestinal
- HCI, hydrochloric acid
- HEPH, hephaestin
- Heph-/-, mice lacking HEPH in the whole body
- Heph-/-Cp-/- or DKO, double-knockout mice lacking both HEPH and CP
- Hephfl/fl, mice with floxed Heph alleles
- Hephfl/flCp-/-, mice with floxed Heph alleles and lacking CP in the whole body
- Hephint/int, mice lacking HEPH in the intestine alone
- Hephint/intCp-/-, mice lacking HEPH in the intestine alone and lacking CP in the whole body
- Hephsla/slaCp-/-, mice lacking CP in the whole body and expressing only the sla mutant form of HEPH
- Intestinal Iron Absorption
- Iron Deficiency Anemia
- Iron Overload
- MCF, multicopper ferroxidase
- NTBI, non-transferrin bound iron
- Non-Transferrin Bound Iron
- PBS, phosphate-buffered saline
- PCR, polymerase chain reaction
- SD, standard deviation
- TBST, Tris-buffered saline with 0.1% Tween-20
- TF, transferrin
- TIBC, total iron binding capacity
- WT, wild-type
- sla, sex-linked anemia
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Mirciov CSG, Wilkins SJ, Hung GCC, Helman SL, Anderson GJ, Frazer DM. Circulating iron levels influence the regulation of hepcidin following stimulated erythropoiesis. Haematologica 2018; 103:1616-1626. [PMID: 29903760 PMCID: PMC6165793 DOI: 10.3324/haematol.2017.187245] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 06/11/2018] [Indexed: 01/01/2023] Open
Abstract
The stimulation of erythrocyte formation increases the demand for iron by the bone marrow and this in turn may affect the levels of circulating diferric transferrin. As this molecule influences the production of the iron regulatory hormone hepcidin, we hypothesized that erythropoiesis-driven changes in diferric transferrin levels could contribute to the decrease in hepcidin observed following the administration of erythropoietin. To examine this, we treated mice with erythropoietin and examined diferric transferrin at various time points up to 18 hours. We also investigated the effect of altering diferric transferrin levels on erythropoietin-induced inhibition of Hamp1, the gene encoding hepcidin. We detected a decrease in diferric transferrin levels 5 hours after erythropoietin injection and prior to any inhibition of the hepatic Hamp1 message. Diferric transferrin returned to control levels 12 hours after erythropoietin injection and had increased beyond control levels by 18 hours. Increasing diferric transferrin levels via intravenous iron injection prevented the inhibition of Hamp1 expression by erythropoietin without altering hepatic iron concentration or the expression of Erfe, the gene encoding erythroferrone. These results suggest that diferric transferrin likely contributes to the inhibition of hepcidin production in the period shortly after injection of erythropoietin and that, under the conditions examined, increasing diferric transferrin levels can overcome the inhibitory effect of erythroferrone on hepcidin production. They also imply that the decrease in Hamp1 expression in response to an erythropoietic stimulus is likely to be mediated by multiple signals.
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Affiliation(s)
- Cornel S G Mirciov
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia.,School of Medicine, The University of Queensland, St Lucia, Australia
| | - Sarah J Wilkins
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Grace C C Hung
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Sheridan L Helman
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia.,School of Biomedical Sciences, Queensland University of Technology, Gardens Point, Australia
| | - Gregory J Anderson
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia.,School of Medicine, The University of Queensland, St Lucia, Australia.,School of Chemistry and Molecular Bioscience, The University of Queensland, St Lucia, Australia
| | - David M Frazer
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia .,School of Medicine, The University of Queensland, St Lucia, Australia
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28
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Erythroferrone: An Erythroid Regulator of Hepcidin and Iron Metabolism. Hemasphere 2018; 2:e35. [PMID: 31723763 PMCID: PMC6745900 DOI: 10.1097/hs9.0000000000000035] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 02/04/2018] [Accepted: 02/23/2018] [Indexed: 12/21/2022] Open
Abstract
Iron homeostasis ensures adequate iron for biological processes while preventing excessive iron accumulation, which can lead to tissue injury. In mammalian systems, iron availability is controlled by the interaction of the iron-regulatory hormone hepcidin with ferroportin, a molecule that functions both as the hepcidin receptor as well as the sole known cellular exporter of iron. By reducing iron export through ferroportin to blood plasma, hepcidin inhibits the mobilization of iron from stores and the absorption of dietary iron. Among the many processes requiring iron, erythropoiesis is the most iron-intensive, consuming most iron circulating in blood plasma. Under conditions of enhanced erythropoiesis, more iron is required to provide developing erythroblasts with adequate iron for heme and hemoglobin synthesis. Here the hormone erythroferrone, produced by erythroblasts, acts on hepatocytes to suppress hepcidin production, and thereby increase dietary iron absorption and mobilization from stores. This review focuses on the discovery of erythroferrone and recent advances in understanding the role of this hormone in the regulation of iron homeostasis during states of increased erythropoietic demand. Gaps in our understanding of the role of erythroferrone are highlighted for future study.
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29
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Stripeli F, Kapetanakis J, Gourgiotis D, Drakatos A, Tsolia M, Kossiva L. Post-transfusion changes in serum hepcidin and iron parameters in preterm infants. Pediatr Int 2018; 60:148-152. [PMID: 29236334 DOI: 10.1111/ped.13478] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 07/16/2017] [Accepted: 08/22/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND Packed red blood cell transfusion is common in preterm neonates. Hepcidin acts as a negative feedback iron regulator. Iron parameters such as immature reticulocyte fraction (IRF) and high-light-scatter reticulocytes (HLR) are used to clarify iron metabolism. Very little is known about the regulation of hepcidin in preterm infants because most reports have evaluated prohepcidin. The aim of this study was therefore to evaluate serum hepcidin and establish hematological parameters in preterm infants after transfusion. METHODS The subjects consisted of 19 newborns (10 boys) with mean gestational age 29.1 ± 2.0 weeks, who had been transfused at the chronological age of 44.84 ± 19.61 days. Blood sample was collected before the transfusion and thereafter at 5 days and at 1 month. Serum hepcidin and other iron parameters were evaluated. RESULTS Mean serum hepcidin before and 5 days after transfusion was significantly different (5.5 ± 5.1 vs 10 ± 7.9 ng/mL respectively, P = 0.005). IRF and % HLR were also decreased significantly, 5 days after transfusion (0.4 ± 0.2 vs 0.2 ± 0.1, P = 0.009; 1.4 ± 1.5% vs 0.5 ± 0.4%, P = 0.012, respectively). Changes in hepcidin 5 days after transfusion were correlated significantly with changes in mean corpuscular hemoglobin (β, 0.13; SE, 0.05; P = 0.017), total iron binding capacity (β, 3.74; SE, 1.56; P = 0.016) and transferrin (β, 2.9, SE, 1.4; P = 0.039). CONCLUSIONS Serum hepcidin concentration, along with IRF and HLR, are potentially useful in estimating pre- and post-transfusion iron status. Larger studies are needed to evaluate the sensitivity and specificity of hepcidin compared with ordinary iron parameters in premature infants.
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Affiliation(s)
- Fotini Stripeli
- Neonatal Intensive Care Unit, P&A Kyriakou Children's Hospital, Athens, Greece
| | - John Kapetanakis
- Neonatal Intensive Care Unit, P&A Kyriakou Children's Hospital, Athens, Greece
| | - Dimitris Gourgiotis
- Research Laboratory of Clinical Biochemistry-Molecular Diagnostics, P&A Kyriakou Children's Hospital, Athens, Greece
| | - Antonis Drakatos
- Laboratory of Biochemistry, P&A Kyriakou Children's Hospital, Athens, Greece
| | - Maria Tsolia
- Second Department of Pediatrics, National and Kapodistrian University of Athens, P&A Kyriakou Children's Hospital, Athens, Greece
| | - Lydia Kossiva
- Second Department of Pediatrics, National and Kapodistrian University of Athens, P&A Kyriakou Children's Hospital, Athens, Greece
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30
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Abstract
Stress erythropoiesis (SE) is characterized by an imbalance in erythroid proliferation and differentiation under increased demands of erythrocyte generation and tissue oxygenation. β-thalassemia represents a chronic state of SE, called ineffective erythropoiesis (IE), exhibiting an expansion of erythroid-progenitor pool and deposition of alpha chains on erythrocyte membranes, causing cell death and anemia. Concurrently, there is a decrease in hepcidin expression and a subsequent state of iron overload. There are substantial investigative efforts to target increased iron absorption under IE. There are also avenues for targeting cell contact and signaling within erythroblastic islands under SE, for therapeutic benefits.
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Hamp1 but not Hamp2 regulates ferroportin in fish with two functionally distinct hepcidin types. Sci Rep 2017; 7:14793. [PMID: 29093559 PMCID: PMC5665920 DOI: 10.1038/s41598-017-14933-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 10/18/2017] [Indexed: 01/01/2023] Open
Abstract
Hepcidin is a small cysteine rich peptide that regulates the sole known cellular iron exporter, ferroportin, effectively controlling iron metabolism. Contrary to humans, where a single hepcidin exists, many fish have two functionally distinct hepcidin types, despite having a single ferroportin gene. This raises the question of whether ferroportin is similarly regulated by the iron regulator Hamp1 and the antimicrobial Hamp2. In sea bass (Dicentrarchus labrax), iron overload prompted a downregulation of ferroportin, associated with an upregulation of hamp1, whereas an opposite response was observed during anemia, with no changes in hamp2 in either situation. During infection, ferroportin expression decreased, indicating iron withholding to avoid microbial proliferation. In vivo administration of Hamp1 but not Hamp2 synthetic peptides caused significant reduction in ferroportin expression, indicating that in teleost fish with two hepcidin types, ferroportin activity is mediated through the iron-regulator Hamp1, and not through the dedicated antimicrobial Hamp2. Additionally, in vitro treatment of mouse macrophages with fish Hamp1 but not Hamp2 caused a decrease in ferroportin levels. These results raise questions on the evolution of hepcidin and ferroportin functional partnership and open new possibilities for the pharmaceutical use of selected fish Hamp2 hepcidins during infections, with no impact on iron homeostasis.
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32
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Green tea activity and iron overload induced molecular fibrogenesis of rat liver. Saudi J Biol Sci 2017; 26:531-540. [PMID: 30899168 PMCID: PMC6408694 DOI: 10.1016/j.sjbs.2017.08.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/24/2017] [Accepted: 08/17/2017] [Indexed: 12/21/2022] Open
Abstract
Iron overload toxicity was shown to associate with chronic liver diseases which lead to hepatic fibrosis and subsequently the progression to cancer through oxidative stress and apoptotic pathways. Green tea potential activity as chelating, anti-oxidative, or anti-apoptotic mechanisms against metal toxicity was poorly clarified. Here, we are trying to evaluate the anti-oxidant and anti-apoptotic properties of green tea in the regulation of serum hepcidin levels, reduction in iron overloads, and improve of liver fibrosis in iron overloaded experimental rats. Three groups of male adult rats were randomly classified into three groups and treated as follows: control rats, iron treated rats for two months in drinking water followed by either vehicle or green tea extract (AGTE; 100 mg/kg) treatment for 2 more months. Thereafter, we studied the effects of AGTE on iron overload-induced lipid peroxidation, anti-oxidant depletion, liver cell injury and apoptosis. Treatment of iron-overloaded rats with AGTE resulted in marked decreases in iron accumulation within liver, depletion in serum ferritin, and hepcidin levels. Iron-overloaded rats had significant increase in malonyldialdehyde (MDA), a marker of lipid peroxidation and nitric oxide (NO) in liver when compared to control group. Also, significant change in cytochrome c and DNA content as apoptotic markers were reported in iron treated rats. The effects of iron overload on lipid peroxidation, NO levels, cytochrome c and DNA content were significantly reduced by the intervention treatment with AGTE (P < 0.001). Furthermore, the endogenous anti-oxidant capacities/levels (TAC) in liver were also significantly decreased in chronic iron overload and administration of AGTE restored the decrease in the hepatic antioxidant activities/levels. Also, hepatic hepcidin was shown to be significantly correlated with oxidative and apoptotic relating biomarkers as well as an improvement in liver fibrosis of iron treated rats following AGTE treatment. In-vitro analysis showed that, the improvement in iron toxicity of the liver depend mainly on antioxidant and protective ability of green tea polyphenolic compounds especiallyepigallocatechin-3-gallate (EGCG). Our study showed that green tea extract (GTE) ameliorates iron overload induced hepatotoxicity, apoptosis and oxidative stress in rat liver via inhibition of hepatic iron accumulation; improve of liver antioxidant capacity, and down regulation of serum hepcidin as well as reduction in the release of apoptotic relating proteins.
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Park CY, Chung J, Koo KO, Kim MS, Han SN. Hepatic iron storage is related to body adiposity and hepatic inflammation. Nutr Metab (Lond) 2017; 14:14. [PMID: 28228829 PMCID: PMC5307864 DOI: 10.1186/s12986-017-0169-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 02/06/2017] [Indexed: 12/21/2022] Open
Abstract
Background Obesity has been reported to be associated with iron deficiency. However, few studies have investigated iron status in low adiposity. To investigate whether body adiposity was associated with altered hepatic iron status, we compared liver iron levels and markers involved in inflammation and iron absorption in obese, control, and mildly calorie restricted mice. Methods Seven week old C57BL/6 mice were fed control (10% kcal fat, Control) or high fat (60% kcal fat, HFD) diets, or reduced amount of control diet to achieve 15% calorie restriction (CR) for 16 weeks. Hepatic non-heme iron content and ferritin protein level, and hematocrit and hemoglobin levels were determined to assess iron status. Hepatic expression of Mcp-1 and Tnf-α were measured as hepatic inflammatory markers. Hepatic hepcidin (Hamp) and Bmp6, and duodenal Dmt1, Dcyt1b, hephaestin (Heph) and ferroportin mRNA levels were measured as factors involved in regulation of iron absorption. Results Hepatic non-heme iron and ferritin protein levels were significantly higher in the CR group compared with the Control group, and significantly lower in the HFD group. These two iron status markers showed significantly negative correlations with the amount of white adipose tissue (r = -0.689 for hepatic non-heme iron and r = -0.740 for ferritin). Hepatic Mcp-1 and Tnf-α mRNA levels were significantly lower in the CR compared with the HFD (74 and 47% lower) and showed significantly negative correlations with hepatic non-heme iron levels (Mcp-1: r = -0.557, P < 0.05; Tnf-α: r = -0.464, P < 0.05). Hepatic Hamp mRNA levels were lower in the HFD and higher in the CR groups compared with the Control group, which could be a response to maintain iron homeostasis. Duodenal Dcyt1b mRNA levels were higher in the CR group compared with the HFD group and duodenal Heph mRNA levels were higher in the CR group than the Control group. Conclusion We showed that body adiposity was inversely correlated with liver iron status. Low inflammation levels in hepatic milieu and enhanced expression of duodenal oxidoreductases induced by calorie restriction could have contributed to higher iron status.
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Affiliation(s)
- Chan Yoon Park
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, South Korea
| | - Jayong Chung
- Department of Food and Nutrition, College of Human Ecology, Kyung Hee University, Seoul, South Korea
| | - Kyung-Ok Koo
- Department of Food and Nutrition, College of Human Ecology, Kyung Hee University, Seoul, South Korea
| | - Min Soo Kim
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, South Korea
| | - Sung Nim Han
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, South Korea.,Research Institute of Human Ecology, Seoul National University, Seoul, South Korea
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Ferroportin Is Essential for Iron Absorption During Suckling, But Is Hyporesponsive to the Regulatory Hormone Hepcidin. Cell Mol Gastroenterol Hepatol 2016; 3:410-421. [PMID: 28462381 PMCID: PMC5403955 DOI: 10.1016/j.jcmgh.2016.12.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 12/04/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS Previous studies have suggested that iron absorption in suckling mammals is refractory to stimuli that normally would decrease absorption in adults. To better understand the regulation of iron absorption during suckling, we have characterized the relationship between hepcidin, ferroportin, and iron absorption at this crucial stage of life. METHODS To determine whether ferroportin is involved in iron absorption during suckling, absorption was measured in intestine-specific ferroportin knockout mice. The effect of constitutive hepcidin overexpression on intestinal iron absorption also was investigated in suckling transmembrane serine protease 6 knockout mice. Finally, suckling mice were injected with lipopolysaccharide to induce hepcidin expression. Blood was collected for serum iron analysis, and liver tissue and duodenal enterocytes were collected for gene and protein expression profiles. RESULTS Iron absorption was very low in suckling ferroportin knockout mice, indicating that ferroportin is responsible for the majority of the iron absorbed at this time. However, increases in hepcidin during suckling, as seen in transmembrane serine protease 6 knockout mice and in mice injected with lipopolysaccharide, did not affect enterocyte ferroportin levels. Immunofluorescent localization of ferroportin showed that the protein localized to the basolateral membrane of duodenal enterocytes in both suckling and weaned mice. CONCLUSIONS These data show that the high iron absorption occurring during suckling is mediated by ferroportin. However, enterocyte ferroportin is hyporesponsive to hepcidin at this time, despite being expressed on the basolateral membrane. Alterations to ferroportin that prevent hepcidin binding during suckling may allow iron absorption to remain high regardless of hepcidin expression levels, reducing the likelihood of iron deficiency during development.
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Key Words
- FDB, fluorescence dilution buffer
- Hamp1, hepcidin antimicrobial peptide 1
- Hprt, hypoxanthine guanine phosphoribosyl transferase
- Inflammation
- Iron Deficiency
- Iron Homeostasis
- LPS, lipopolysaccharide
- PBS, phosphate-buffered saline
- PCR, polymerase chain reaction
- SDS, sodium dodecyl sulfate
- Saa1, serum amyloid A1
- Tmprss6, transmembrane serine protease 6
- cDNA, complementary DNA
- mRNA, messenger RNA
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Oh CK, Park SH, Kim J, Moon Y. Non-mutagenic Suppression of Enterocyte Ferroportin 1 by Chemical Ribosomal Inactivation via p38 Mitogen-activated Protein Kinase (MAPK)-mediated Regulation: EVIDENCE FOR ENVIRONMENTAL HEMOCHROMATOSIS. J Biol Chem 2016; 291:19858-72. [PMID: 27445333 DOI: 10.1074/jbc.m116.722520] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Indexed: 01/09/2023] Open
Abstract
Iron transfer across the basolateral membrane of an enterocyte into the circulation is the rate-limiting step in iron absorption and is regulated by various pathophysiological factors. Ferroportin (FPN), the only known mammalian iron exporter, transports iron from the basolateral surface of enterocytes, macrophages, and hepatocytes into the blood. Patients with genetic mutations in FPN or repeated blood transfusion develop hemochromatosis. In this study, non-mutagenic ribosomal inactivation was assessed as an etiological factor of FPN-associated hemochromatosis in enterocytes. Non-mutagenic chemical ribosomal inactivation disrupted iron homeostasis by regulating expression of the iron exporter FPN-1, leading to intracellular accumulation in enterocytes. Mechanistically, a xenobiotic insult stimulated the intracellular sentinel p38 MAPK signaling pathway, which was positively involved in FPN-1 suppression by ribosomal dysfunction. Moreover, ribosomal inactivation-induced iron accumulation in Caenorhabditis elegans as a simplified in vivo model for gut nutrition uptake was dependent on SEK-1, a p38 kinase activator, leading to suppression of FPN-1.1 expression and iron accumulation. In terms of gene regulation, ribosomal stress-activated p38 signaling down-regulated NRF2 and NF-κB, both of which were positive transcriptional regulators of FPN-1 transcription. This study provides molecular evidence for the modulation of iron bioavailability by ribosomal dysfunction as a potent etiological factor of non-mutagenic environmental hemochromatosis in the gut-to-blood axis.
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Affiliation(s)
- Chang-Kyu Oh
- From the Laboratory of Mucosal Exposome and Biomodulation, Department of Biomedical Sciences, Pusan National University School of Medicine, Yangsan 50612, South Korea and
| | - Seong-Hwan Park
- From the Laboratory of Mucosal Exposome and Biomodulation, Department of Biomedical Sciences, Pusan National University School of Medicine, Yangsan 50612, South Korea and
| | - Juil Kim
- From the Laboratory of Mucosal Exposome and Biomodulation, Department of Biomedical Sciences, Pusan National University School of Medicine, Yangsan 50612, South Korea and
| | - Yuseok Moon
- From the Laboratory of Mucosal Exposome and Biomodulation, Department of Biomedical Sciences, Pusan National University School of Medicine, Yangsan 50612, South Korea and the Medical Research Institute, Pusan National University, Busan 46241, South Korea
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36
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Frazer DM, Wilkins SJ, Mirciov CSG, Dunn LA, Anderson GJ. Hepcidin independent iron recycling in a mouse model of β-thalassaemia intermedia. Br J Haematol 2016; 175:308-317. [PMID: 27410488 DOI: 10.1111/bjh.14206] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 05/04/2016] [Indexed: 12/17/2022]
Abstract
In conditions such as β-thalassaemia, stimulated erythropoiesis can reduce the expression of the iron regulatory hormone hepcidin, increasing both macrophage iron release and intestinal iron absorption and leading to iron loading. However, in certain conditions, sustained elevation of erythropoiesis can occur without an increase in body iron load. To investigate this in more detail, we made use of a novel mouse strain (RBC14), which exhibits mild β-thalassaemia intermedia with minimal iron loading. We compared iron homeostasis in RBC14 mice to that of Hbbth3/+ mice, a more severe model of β-thalassaemia intermedia. Both mouse strains showed a decrease in plasma iron half-life, although the changes were less severe in RBC14 mice. Despite this, intestinal ferroportin and serum hepcidin levels were unaltered in RBC14 mice. In contrast, Hbbth3/+ mice exhibited reduced serum hepcidin and increased intestinal ferroportin. However, splenic ferroportin levels were increased in both mouse strains. These data suggest that in low-grade chronic haemolytic anaemia, such as that seen in RBC14 mice, the increased erythroid iron requirements can be met through enhanced macrophage iron release without the need to increase iron absorption, implying that hepcidin is not the sole regulator of macrophage iron release in vivo.
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Affiliation(s)
- David M Frazer
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia.
| | - Sarah J Wilkins
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Cornel S G Mirciov
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia.,Schools of Medicine, The University of Queensland, St Lucia, Australia
| | - Linda A Dunn
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia
| | - Gregory J Anderson
- Iron Metabolism Laboratory, QIMR Berghofer Medical Research Institute, Herston, Australia. .,Schools of Medicine, The University of Queensland, St Lucia, Australia. .,School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia.
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37
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Food science and technology for management of iron deficiency in humans: A review. Trends Food Sci Technol 2016. [DOI: 10.1016/j.tifs.2016.05.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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38
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Chung H, Wu D, Smith D, Meydani SN, Han SN. Lower hepatic iron storage associated with obesity in mice can be restored by decreasing body fat mass through feeding a low-fat diet. Nutr Res 2016; 36:955-963. [PMID: 27632915 DOI: 10.1016/j.nutres.2016.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 04/29/2016] [Accepted: 06/01/2016] [Indexed: 12/20/2022]
Abstract
High-fat diet (HFD)-induced obesity has been reported to result in low hepatic iron storage. In the current study, we tested the hypothesis that these obesity-related changes in hepatic iron status could be reversed by decreasing adiposity by feeding a low-fat diet. Five-week-old C57BL/6 mice were assigned to 3 groups: the LL group was fed a control diet for 31 weeks, the HH group was fed a HFD for 31 weeks, and the HL group was fed the HFD for 15 weeks and then switched to the control diet for 16 weeks. The fat mass of the HL group decreased by 3.2 g from the 14th to the 30th weeks. Fat mass was significantly different among the groups (11.4, 15.8, and 37.5 g in the LL, HH, and HL groups, respectively; P< .001). The liver iron concentration of the HL group was similar to that of the LL group, which was about 30% higher than that of the HH group (74.2, 72.7, and 55.7 μg/g in the LL, HL, and HH groups, respectively; P< .05). Duodenal cytochrome b messenger RNA (mRNA) levels were higher in the HL group than in the HH group. Although bone morphogenetic protein 6 (Bmp6) mRNA levels showed no significant differences in the liver, duodenal Bmp6 mRNA levels were significantly lower in the HH group compared with the LL and HL groups. Liver Smad1/5 proteins were differentially activated: the HH group had significantly less phosphorylated Smads than did the LL and HL groups. Our data demonstrate that hepatic iron storage levels are closely related to body adiposity, and reducing body fat mass through feeding a lower-fat diet to HFD-induced obese mice restores liver iron storage.
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Affiliation(s)
- Hak Chung
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Korea
| | - Dayong Wu
- JM USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA
| | - Donald Smith
- JM USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA
| | - Simin Nikbin Meydani
- JM USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA
| | - Sung Nim Han
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Korea; Research Institute of Human Ecology, College of Human Ecology, Seoul National University, Seoul, Korea.
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Moreno-Fernandez J, Diaz-Castro J, Pulido-Moran M, Alferez MJM, Boesch C, Sanchez-Alcover A, López-Aliaga I. Fermented Goat's Milk Consumption Improves Duodenal Expression of Iron Homeostasis Genes during Anemia Recovery. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:2560-2568. [PMID: 26976781 DOI: 10.1021/acs.jafc.6b00108] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Despite the crucial roles of duodenal cytochrome b (Dcytb), divalent metal transporter 1 (DMT1), ferritin light chain (Ftl1), ferroportin 1 (FPN1), transferrin receptor 1 (TfR1), and hepcidin antimicrobial peptide (Hamp) in Fe metabolism, no studies have investigated the modulations of these genes during Fe repletion with fermented milks. Analysis included Fe status markers and gene and protein expression in enterocytes of control and anemic animals fed fermented milks. Fermented goat's milk up-regulated enterocyte Dcytb, DMT1, FPN1, and Ftl1 and down-regulated TfR1 and Hamp gene expression in control and anemic animals. Anemia decreased Dcytb, DMT1, and Ftl1 in animals fed fermented cow's milk and up-regulated TfR1 and Hamp expression. Fe overload down-regulated Dcytb and TfR1 in animals fed fermented cow's milk and up-regulated DMT1 and FPN1 gene expression. Fermented goat's milk increased expression of duodenal Dcytb, DMT1, and FPN1 and decreased Hamp and TfR1, improving Fe metabolism during anemia recovery.
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Affiliation(s)
- Jorge Moreno-Fernandez
- Department of Physiology, University of Granada , Granada, Spain
- Institute of Nutrition and Food Technology "José Mataix Verdú", University of Granada , Granada, Spain
| | - Javier Diaz-Castro
- Department of Physiology, University of Granada , Granada, Spain
- Institute of Nutrition and Food Technology "José Mataix Verdú", University of Granada , Granada, Spain
| | - Mario Pulido-Moran
- Institute of Nutrition and Food Technology "José Mataix Verdú", University of Granada , Granada, Spain
- Department of Biochemistry and Molecular Biology II, University of Granada , Granada, Spain
| | - Maria J M Alferez
- Department of Physiology, University of Granada , Granada, Spain
- Institute of Nutrition and Food Technology "José Mataix Verdú", University of Granada , Granada, Spain
| | - Christine Boesch
- School of Food Science and Nutrition, University of Leeds , Leeds, United Kingdom
| | - Ana Sanchez-Alcover
- Department of Physiology, University of Granada , Granada, Spain
- Institute of Nutrition and Food Technology "José Mataix Verdú", University of Granada , Granada, Spain
| | - Inmaculada López-Aliaga
- Department of Physiology, University of Granada , Granada, Spain
- Institute of Nutrition and Food Technology "José Mataix Verdú", University of Granada , Granada, Spain
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Yamano N, Ikeda Y, Sakama M, Izawa-Ishizawa Y, Kihira Y, Ishizawa K, Miyamoto L, Tomita S, Tsuchiya K, Tamaki T. A long-term high-fat diet changes iron distribution in the body, increasing iron accumulation specifically in the mouse spleen. J Nutr Sci Vitaminol (Tokyo) 2016; 61:20-7. [PMID: 25994136 DOI: 10.3177/jnsv.61.20] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Although iron is an essential trace metal, its presence in excess causes oxidative stress in the human body. Recent studies have indicated that iron storage is a risk factor for type 2 diabetes mellitus. Dietary iron restriction or iron chelation ameliorates symptoms of type 2 diabetes in mouse models. However, whether iron content in the body changes with the development of diabetes is unknown. Here, we investigated the dynamics of iron accumulation and changes in iron absorption-related genes in mice that developed obesity and diabetes by consuming a high-fat diet (HFD-fed mice). HFD-fed mice (18-20 wk) were compared with control mice for hematologic features, serum ferritin levels, and iron contents in the gastrocnemius muscle, heart, epididymal fat, testis, liver, duodenum, and spleen. In addition, the spleen was examined histologically. Iron absorption-related gene expression in the liver and duodenum was also examined. Hemoglobin and serum ferritin levels were increased in HFD-fed mice. The HFD-fed mice showed iron accumulation in the spleen, but not in the heart or liver. Increased percentages of the splenic red pulp and macrophages were observed in HFD-fed mice and iron accumulation in the spleen was found mainly in the splenic red pulp. The HFD-fed mice also showed decreased iron content in the duodenum. The mRNA expression of divalent metal transporter-1 (DMT-1), an iron absorption-related gene, was elevated in the duodenum of HFD-fed mice. These results indicate that iron accumulation (specifically accumulation in the spleen) is enhanced by the development of type 2 diabetes induced by HFD.
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Affiliation(s)
- Noriko Yamano
- Department of Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School
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41
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Xiao C, Lei X, Wang Q, Du Z, Jiang L, Chen S, Zhang M, Zhang H, Ren F. Effects of a Tripeptide Iron on Iron-Deficiency Anemia in Rats. Biol Trace Elem Res 2016; 169:211-7. [PMID: 26109335 DOI: 10.1007/s12011-015-0412-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/12/2015] [Indexed: 10/23/2022]
Abstract
This study aims to investigate the effects of a tripeptide iron (REE-Fe) on iron-deficiency anemia rats. Sprague-Dawley rats were randomly divided into seven groups: a normal control group, an iron-deficiency control group, and iron-deficiency groups treated with ferrous sulfate (FeSO4), ferrous glycinate (Fe-Gly), or REE-Fe at low-, medium-, or high-dose groups. The rats in the iron-deficiency groups were fed on an iron-deficient diet to establish iron-deficiency anemia (IDA) model. After the model established, different iron supplements were given to the rats once a day by intragastric administration for 21 days. The results showed that REE-Fe had effective restorative action returning body weight, organ coefficients, and hematological parameters in IDA rats to normal level. In addition, comparing with FeSO4 or Fe-Gly, high-dose REE-Fe was more effective on improving the levels of renal coefficient, total iron-binding capacity, and transferrin. Furthermore, the liver hepcidin messenger RNA (mRNA) expression in the high-dose group was significantly higher (p < 0.05) than that in the FeSO4 or Fe-Gly group and showed no significant difference (p > 0.05) with the normal control group. The findings suggest that REE-Fe is an effective source of iron supplement for IDA rats and might be exploited as a new iron fortifier.
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Affiliation(s)
- Chen Xiao
- Beijing Laboratory of Food Quality and Safety, and Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, P.O. Box 287, No. 17 Qinghua East Road, Haidian, Beijing, 100083, People's Republic of China
| | - Xingen Lei
- Department of Animal Science, Cornell University, Ithaca, NY, 14853, USA
| | - Qingyu Wang
- Beijing Laboratory of Food Quality and Safety, and Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, P.O. Box 287, No. 17 Qinghua East Road, Haidian, Beijing, 100083, People's Republic of China
| | - Zhongyao Du
- Beijing Laboratory of Food Quality and Safety, and Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, P.O. Box 287, No. 17 Qinghua East Road, Haidian, Beijing, 100083, People's Republic of China
| | - Lu Jiang
- Beijing Laboratory of Food Quality and Safety, and Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, P.O. Box 287, No. 17 Qinghua East Road, Haidian, Beijing, 100083, People's Republic of China
| | - Silu Chen
- Beijing Laboratory of Food Quality and Safety, and Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, P.O. Box 287, No. 17 Qinghua East Road, Haidian, Beijing, 100083, People's Republic of China
| | - Mingjie Zhang
- Beijing Higher Institution Engineering Research Center of Animal Product, Beijing, 100083, People's Republic of China
| | - Hao Zhang
- Beijing Laboratory of Food Quality and Safety, and Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, P.O. Box 287, No. 17 Qinghua East Road, Haidian, Beijing, 100083, People's Republic of China.
| | - Fazheng Ren
- Beijing Laboratory of Food Quality and Safety, and Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, P.O. Box 287, No. 17 Qinghua East Road, Haidian, Beijing, 100083, People's Republic of China
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Effects of Pregnancy and Lactation on Iron Metabolism in Rats. BIOMED RESEARCH INTERNATIONAL 2015; 2015:105325. [PMID: 26788496 PMCID: PMC4695656 DOI: 10.1155/2015/105325] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 11/20/2015] [Accepted: 11/29/2015] [Indexed: 12/21/2022]
Abstract
In female, inadequate iron supply is a highly prevalent problem that often leads to iron-deficiency anemia. This study aimed to understand the effects of pregnancy and lactation on iron metabolism. Rats with different days of gestation and lactation were used to determine the variations in iron stores and serum iron level and the changes in expression of iron metabolism-related proteins, including ferritin, ferroportin 1 (FPN1), ceruloplasmin (Cp), divalent metal transporter 1 (DMT1), transferrin receptor 1 (TfR1), and the major iron-regulatory molecule—hepcidin. We found that iron stores decline dramatically at late-pregnancy period, and the low iron store status persists throughout the lactation period. The significantly increased FPN1 level in small intestine facilitates digestive iron absorption, which maintains the serum iron concentration at a near-normal level to meet the increase of iron requirements. Moreover, a significant decrease of hepcidin expression is observed during late-pregnancy and early-lactation stages, suggesting the important regulatory role that hepcidin plays in iron metabolism during pregnancy and lactation. These results are fundamental to the understanding of iron homeostasis during pregnancy and lactation and may provide experimental bases for future studies to identify key molecules expressed during these special periods that regulate the expression of hepcidin, to eventually improve the iron-deficiency status.
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Staroń R, Van Swelm RPL, Lipiński P, Gajowiak A, Lenartowicz M, Bednarz A, Gajewska M, Pieszka M, Laarakkers CMM, Swinkels DW, Starzyński RR. Urinary Hepcidin Levels in Iron-Deficient and Iron-Supplemented Piglets Correlate with Hepcidin Hepatic mRNA and Serum Levels and with Body Iron Status. PLoS One 2015; 10:e0136695. [PMID: 26323096 PMCID: PMC4556373 DOI: 10.1371/journal.pone.0136695] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 08/05/2015] [Indexed: 12/15/2022] Open
Abstract
Among livestock, domestic pig (Sus scrofa) is a species, in which iron metabolism has been most intensively examined during last decade. The obvious reason for studying the regulation of iron homeostasis especially in young pigs is neonatal iron deficiency anemia commonly occurring in these animals. Moreover, supplementation of essentially all commercially reared piglets with iron entails a need for monitoring the efficacy of this routine practice followed in the swine industry for several decades. Since the discovery of hepcidin many studies confirmed its role as key regulator of iron metabolism and pointed out the assessment of its concentrations in biological fluids as diagnostic tool for iron-related disorder. Here we demonstrate that urine hepcidin-25 levels measured by a combination of weak cation exchange chromatography and time-of-flight mass spectrometry (WCX-TOF MS) are highly correlated with mRNA hepcidin expression in the liver and plasma hepcidin-25 concentrations in anemic and iron-supplemented 28-day old piglets. We also found a high correlation between urine hepcidin level and hepatic non-heme iron content. Our results show that similarly to previously described transgenic mouse models of iron disorders, young pigs constitute a convenient animal model to explore accuracy and relationship between indicators for assessing systemic iron status.
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Affiliation(s)
- Robert Staroń
- Institute of Genetics and Animal Breeding PAS, Department of Molecular Biology, Jastrzębiec, Poland
| | - Rachel P. L. Van Swelm
- Department of Laboratory Medicine (LGEM 830), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Paweł Lipiński
- Institute of Genetics and Animal Breeding PAS, Department of Molecular Biology, Jastrzębiec, Poland
- * E-mail: (RRS); (PL)
| | - Anna Gajowiak
- Institute of Genetics and Animal Breeding PAS, Department of Molecular Biology, Jastrzębiec, Poland
| | - Małgorzata Lenartowicz
- Department of Genetics and Evolution, Institute of Zoology, Jagiellonian University, Kraków, Poland
| | - Aleksandra Bednarz
- Department of Genetics and Evolution, Institute of Zoology, Jagiellonian University, Kraków, Poland
| | - Małgorzata Gajewska
- Warsaw University of Life Sciences, Faculty of Veterinary Medicine, Department of Physiological Sciences, Warsaw, Poland
| | - Marek Pieszka
- Department of Animal Nutrition & Feed Science, National Research Institute of Animal Production, Kraków, Poland
| | - Coby M. M. Laarakkers
- Department of Laboratory Medicine (LGEM 830), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Dorine W. Swinkels
- Department of Laboratory Medicine (LGEM 830), Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Rafał R. Starzyński
- Institute of Genetics and Animal Breeding PAS, Department of Molecular Biology, Jastrzębiec, Poland
- * E-mail: (RRS); (PL)
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Neves JV, Caldas C, Vieira I, Ramos MF, Rodrigues PNS. Multiple Hepcidins in a Teleost Fish, Dicentrarchus labrax: Different Hepcidins for Different Roles. THE JOURNAL OF IMMUNOLOGY 2015; 195:2696-709. [DOI: 10.4049/jimmunol.1501153] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 07/14/2015] [Indexed: 12/16/2022]
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Effects of prebiotic supplementation on the expression of proteins regulating iron absorption in anaemic growing rats. Br J Nutr 2015; 113:901-8. [PMID: 25745840 DOI: 10.1017/s0007114514004334] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Prebiotics may increase intestinal Fe absorption in anaemic growing rats. The present study evaluated the effects of high-performance (HP) inulin and oligofructose on factors that regulate Fe absorption in anaemic rats during the growth phase. Male Wistar rats aged 21 d of age were fed AIN-93G ration without Fe for 2 weeks to induce Fe-deficiency anaemia. The rats were fed on day 35 a control diet, or a diet with 10 % HP inulin, or a diet with 10 % oligofructose, without Fe supplementation. The animals were euthanised after 2 weeks, and segments of the duodenum, caecum, colon and liver were removed. The expression levels of proteins in the intestinal segments were assessed using Western blotting. The levels of serum, urine and liver hepcidin and the concentrations of IL-10, IL-6 and TNF-α in the caecum, colon and liver were measured using the ELISA test. HP inulin increased the expression of the divalent metal transporter 1 protein in the caecum by 162 % (P= 0·04), and the expression of duodenal cytochrome b reductase in the colon by 136 % (P= 0·02). Oligofructose decreased the expression of the protein ferroportin in the duodenum (P= 0·02), the concentrations of IL-10 (P= 0·044), IL-6 (P= 0·036) and TNF-α (P= 0·004) in the caecum, as well as the level of urinary hepcidin (P< 0·001). These results indicate that prebiotics may interfere with the expression of various intestinal proteins and systemic factors involved in the regulation of intestinal Fe absorption in anaemic rats during the growth phase.
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Kong WN, Wu Q, Shen D, Zhao SE, Guo P, Duan XL, Chang YZ. Age-dependent expression of duodenal cytochrome b, divalent metal transporter 1, ferroportin 1, and hephaestin in the duodenum of rats. J Gastroenterol Hepatol 2015; 30:513-20. [PMID: 25318588 DOI: 10.1111/jgh.12830] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/12/2014] [Indexed: 01/21/2023]
Abstract
BACKGROUND AND AIM The body's requirement for iron is different at different developmental stages. However, the molecular mechanisms of age-dependent iron metabolism are poorly understood. In the present study, we investigated the expression of iron transport proteins in the duodenum of Sprague-Dawley rats at five different age stages. METHODS Male Sprague-Dawley rats at postnatal week (PNW) 1, 3, 12, 44, and 88 were employed in the study. Serum iron status and tissue non-heme iron concentrations in the spleen, liver, bone marrow, heart, kidney, duodenal epithelium, and gastrocnemius were examined at each age stage. The expression of duodenal cytochrome b (DcytB), divalent metal transporter 1 (DMT1), ferroportin 1 (FPN1), hephaestin, and hepcidin were measured by real-time polymerase chain reaction or Western blot. RESULTS The levels of serum iron and transferrin saturation were higher in the rats at PNW1 and 3 than in those at PNW12, 44, and 88. Non-heme iron contents decreased from PNW1 to PNW3 and then increased thereafter. Duodenal DcytB, DMT1, and FPN1 increased to the highest level at PNW3 and then decreased from PNW12 to 88. The hepatic hepcidin mRNA level decreased to the lowest level at PNW3 and then increased with age. CONCLUSION Our findings showed that age had a significant effect on body iron status. The increased duodenal DcytB, DMT1, and FPN1 expression can enhance intestinal iron absorption to meet the high iron requirements in infants. Hepcidin or enterocyte iron levels may be involved in the regulation of age-dependent FPN1, DMT1, and DcytB expression in the duodenum.
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Affiliation(s)
- Wei-Na Kong
- Laboratory of Molecular Iron Metabolism, College of Life Science, The Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, Hebei Normal University, Shijiazhuang, Hebei Province, China; Bioreactor and Protein Drug Research and Development Center of Hebei Universities, Hebei Chemical and Pharmaceutical College, Shijiazhuang, Hebei Province, China
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Yun S, Vincelette ND. Update on iron metabolism and molecular perspective of common genetic and acquired disorder, hemochromatosis. Crit Rev Oncol Hematol 2015; 95:12-25. [PMID: 25737209 DOI: 10.1016/j.critrevonc.2015.02.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 01/29/2015] [Accepted: 02/11/2015] [Indexed: 12/14/2022] Open
Abstract
Iron is an essential component of erythropoiesis and its metabolism is tightly regulated by a variety of internal and external cues including iron storage, tissue hypoxia, inflammation and degree of erythropoiesis. There has been remarkable improvement in our understanding of the molecular mechanisms of iron metabolism past decades. The classical model of iron metabolism with iron response element/iron response protein (IRE/IRP) is now extended to include hepcidin model. Endogenous and exogenous signals funnel down to hepcidin via wide range of signaling pathways including Janus Kinase/Signal Transducer and Activator of Transcription 3 (JAK/STAT3), Bone Morphogenetic Protein/Hemojuvelin/Mothers Against Decapentaplegic Homolog (BMP/HJV/SMAD), and Von Hippel Lindau/Hypoxia-inducible factor/Erythropoietin (VHL/HIF/EPO), then relay to ferroportin, which directly regulates intra- and extracellular iron levels. The successful molecular delineation of iron metabolism further enhanced our understanding of common genetic and acquired disorder, hemochromatosis. The majority of the hereditary hemochromatosis (HH) patients are now shown to have mutations in the genes coding either upstream or downstream proteins of hepcidin, resulting in iron overload. The update on hepcidin centered mechanisms of iron metabolism and their clinical perspective in hemochromatosis will be discussed in this review.
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Affiliation(s)
- Seongseok Yun
- Department of Medicine, University of Arizona, Tucson, AZ 85721, USA.
| | - Nicole D Vincelette
- Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN 55902, USA
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Hubler MJ, Peterson KR, Hasty AH. Iron homeostasis: a new job for macrophages in adipose tissue? Trends Endocrinol Metab 2015; 26:101-9. [PMID: 25600948 PMCID: PMC4315734 DOI: 10.1016/j.tem.2014.12.005] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 12/09/2014] [Accepted: 12/16/2014] [Indexed: 12/29/2022]
Abstract
Elevated serum ferritin and increased cellular iron concentrations are risk factors for diabetes; however, the etiology of this association is unclear. Metabolic tissues such as pancreas, liver, and adipose tissue (AT), as well as the immune cells resident in these tissues, may be involved. Recent studies demonstrate that the polarization status of macrophages has important relevance to their iron-handling capabilities. Furthermore, a subset of macrophages in AT have elevated iron concentrations and a gene expression profile indicative of iron handling, a capacity diminished in obesity. Because iron overload in adipocytes increases systemic insulin resistance, iron handling by AT macrophages may have relevance not only to adipocyte iron stores but also to local and systemic insulin sensitivity.
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Affiliation(s)
- Merla J Hubler
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Kristin R Peterson
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Alyssa H Hasty
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA; Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN 37212, USA.
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Cao C, Thomas CE, Insogna KL, O'Brien KO. Duodenal absorption and tissue utilization of dietary heme and nonheme iron differ in rats. J Nutr 2014; 144:1710-7. [PMID: 25332470 PMCID: PMC4195416 DOI: 10.3945/jn.114.197939] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Dietary heme contributes to iron intake, yet regulation of heme absorption and tissue utilization of absorbed heme remains undefined. OBJECTIVES In a rat model of iron overload, we used stable iron isotopes to examine heme- and nonheme-iron absorption in relation to liver hepcidin and to compare relative utilization of absorbed heme and nonheme iron by erythroid (RBC) and iron storage tissues (liver and spleen). METHODS Twelve male Sprague-Dawley rats were randomly assigned to groups for injections of either saline or iron dextran (16 or 48 mg Fe over 2 wk). After iron loading, rats were administered oral stable iron in the forms of (57)Fe-ferrous sulfate and (58)Fe-labeled hemoglobin. Expression of liver hepcidin and duodenal iron transporters and tissue stable iron enrichment was determined 10 d postdosing. RESULTS High iron loading increased hepatic hepcidin by 3-fold and reduced duodenal expression of divalent metal transporter 1 (DMT1) by 76%. Nonheme-iron absorption was 2.5 times higher than heme-iron absorption (P = 0.0008). Absorption of both forms of iron was inversely correlated with hepatic hepcidin expression (heme-iron absorption: r = -0.77, P = 0.003; nonheme-iron absorption: r = -0.80, P = 0.002), but hepcidin had a stronger impact on nonheme-iron absorption (P = 0.04). Significantly more (57)Fe was recovered in RBCs (P = 0.02), and more (58)Fe was recovered in the spleen (P = 0.01). CONCLUSIONS Elevated hepcidin significantly decreased heme- and nonheme-iron absorption but had a greater impact on nonheme-iron absorption. Differential tissue utilization of heme vs. nonheme iron was evident between erythroid and iron storage tissues, suggesting that some heme may be exported into the circulation in a form different from that of nonheme iron.
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Affiliation(s)
- Chang Cao
- Division of Nutritional Sciences, Cornell University, Ithaca, NY
| | - Carrie E. Thomas
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT; and
| | - Karl L. Insogna
- Department of Internal Medicine, Yale University, New Haven, CT
| | - Kimberly O. O'Brien
- Division of Nutritional Sciences, Cornell University, Ithaca, NY;,To whom correspondence should be addressed. E-mail:
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Lu H, Lian L, Shi D, Zhao H, Dai Y. Hepcidin promotes osteogenic differentiation through the bone morphogenetic protein 2/small mothers against decapentaplegic and mitogen-activated protein kinase/P38 signaling pathways in mesenchymal stem cells. Mol Med Rep 2014; 11:143-50. [PMID: 25351366 PMCID: PMC4237087 DOI: 10.3892/mmr.2014.2769] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 09/29/2014] [Indexed: 12/15/2022] Open
Abstract
The ability of mesenchymal stem cells (MSCs) to differentiate into osteogenic lineages requires management for their future use in treating bone destruction and osteoporosis. Hepcidin is closely associated with bone metabolism, however, it remains to be elucidated whether hepcidin affects osteogenic differentiation in MSCs. The present study demonstrated that hepcidin enhanced osteoblastic differentiation and mineralization, which was manifested by an upregulation in the differentiation markers alkaline phosphatase and osteogenic genes. Furthermore, the expression levels of bone morphogenetic proteins and small mothers against decapentaplegic homologs were concomitantly increased following hepcidin treatment. In addition, the p38 mitogen-activated protein kinase may be an upstream kinase for osteoblastic differentiation. Thus, hepcidin may be important in the osteogenic differentiation of MSCs and may be considered as a target in the development of therapies for pathological bone loss.
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Affiliation(s)
- Huading Lu
- Department of Orthopedics, Third Affiliated Hospital of Sun Yat‑sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Liyi Lian
- Department of Orthopedics, Third Affiliated Hospital of Sun Yat‑sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Dehai Shi
- Department of Orthopedics, Third Affiliated Hospital of Sun Yat‑sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Huiqing Zhao
- Department of Orthopedics, Third Affiliated Hospital of Sun Yat‑sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Yuhu Dai
- Department of Orthopedics, Third Affiliated Hospital of Sun Yat‑sen University, Guangzhou, Guangdong 510630, P.R. China
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