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Sadanandan J, Sathyanesan M, Liu Y, Tiwari NK, Newton SS. Carbamoylated Erythropoietin-Induced Cerebral Blood Perfusion and Vascular Gene Regulation. Int J Mol Sci 2023; 24:11507. [PMID: 37511274 PMCID: PMC10380798 DOI: 10.3390/ijms241411507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Cerebral hypoperfusion is associated with enhanced cognitive decline and increased risk of neuropsychiatric disorders. Erythropoietin (EPO) is a neurotrophic factor known to improve cognitive function in preclinical and clinical studies of neurodegenerative and psychiatric disorders. However, the clinical application of EPO is limited due to its erythropoietic activity that can adversely elevate hematocrit in non-anemic populations. Carbamoylated erythropoietin (CEPO), a chemically engineered non-erythropoietic derivative of EPO, does not alter hematocrit and maintains neurotrophic and behavioral effects comparable to EPO. Our study aimed to investigate the role of CEPO in cerebral hemodynamics. Magnetic resonance imaging (MRI) analysis indicated increased blood perfusion in the hippocampal and striatal region without altering tight junction integrity. In vitro and in vivo analyses indicated that hippocampal neurotransmission was unaltered and increased cerebral perfusion was likely due to EDRF, CGRP, and NOS-mediated vasodilation. In vitro analysis using human umbilical vein endothelial cells (HUVEC) and hippocampal vascular gene expression analysis showed CEPO to be a non-angiogenic agent which regulates the MEOX2 gene expression. The results from our study demonstrate a novel role of CEPO in modulating cerebral vasodilation and blood perfusion.
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Affiliation(s)
- Jayanarayanan Sadanandan
- Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, Vermillion, SD 57069, USA
| | - Monica Sathyanesan
- Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, Vermillion, SD 57069, USA
| | - Yutong Liu
- Radiology Research Division, Department of Radiology, Nebraska Medical Center, Omaha, NE 68198, USA
| | | | - Samuel S Newton
- Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, Vermillion, SD 57069, USA
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Wu Y, Huang L, Sai W, Chen F, Liu Y, Han C, Barker JM, Zwaini ZD, Lowe MP, Brunskill NJ, Yang B. HBSP improves kidney ischemia-reperfusion injury and promotes repair in properdin deficient mice via enhancing phagocytosis of tubular epithelial cells. Front Immunol 2023; 14:1183768. [PMID: 37207230 PMCID: PMC10188997 DOI: 10.3389/fimmu.2023.1183768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 04/13/2023] [Indexed: 05/21/2023] Open
Abstract
Phagocytosis plays vital roles in injury and repair, while its regulation by properdin and innate repair receptor, a heterodimer receptor of erythropoietin receptor (EPOR)/β common receptor (βcR), in renal ischaemia-reperfusion (IR) remains unclear. Properdin, a pattern recognition molecule, facilitates phagocytosis by opsonizing damaged cells. Our previous study showed that the phagocytic function of tubular epithelial cells isolated from properdin knockout (PKO) mouse kidneys was compromised, with upregulated EPOR in IR kidneys that was further raised by PKO at repair phase. Here, helix B surface peptide (HBSP), derived from EPO only recognizing EPOR/βcR, ameliorated IR-induced functional and structural damage in both PKO and wild-type (WT) mice. In particular, HBSP treatment led to less cell apoptosis and F4/80+ macrophage infiltration in the interstitium of PKO IR kidneys compared to the WT control. In addition, the expression of EPOR/βcR was increased by IR in WT kidneys, and furthered increased in IR PKO kidneys, but greatly reduced by HBSP in the IR kidneys of PKO mice. HBSP also increased PCNA expression in IR kidneys of both genotypes. Moreover, iridium-labelled HBSP (HBSP-Ir) was localized mainly in the tubular epithelia after 17-h renal IR in WT mice. HBSP-Ir also anchored to mouse kidney epithelial (TCMK-1) cells treated by H2O2. Both EPOR and EPOR/βcR were significantly increased by H2O2 treatment, while further increased EPOR was showed in cells transfected with small interfering RNA (siRNA) targeting properdin, but a lower level of EPOR was seen in EPOR siRNA and HBSP-treated cells. The number of early apoptotic cells was increased by EPOR siRNA in H2O2-treated TCMK-1, but markedly reversed by HBSP. The phagocytic function of TCMK-1 cells assessed by uptake fluorescence-labelled E.coli was enhanced by HBSP dose-dependently. Our data demonstrate for the first time that HBSP improves the phagocytic function of tubular epithelial cells and kidney repair post IR injury, via upregulated EPOR/βcR triggered by both IR and properdin deficiency.
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Affiliation(s)
- Yuanyuan Wu
- Department of Pathology, Medical School of Nantong University, Nantong, China
- Department of Cardiovascular Sciences, College of Life Sciences, University of Leicester, University Hospitals of Leicester NHS Trust, Leicester, United Kingdom
| | - Lili Huang
- Nantong-Leicester Joint Institute of Kidney Science, Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Weili Sai
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Fei Chen
- Nantong-Leicester Joint Institute of Kidney Science, Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Yu Liu
- Nantong-Leicester Joint Institute of Kidney Science, Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Cheng Han
- Nantong-Leicester Joint Institute of Kidney Science, Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Joanna M. Barker
- School of Chemistry, University of Leicester, Leicester, United Kingdom
| | - Zinah D. Zwaini
- Department of Respiratory Sciences, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - Mark P. Lowe
- School of Chemistry, University of Leicester, Leicester, United Kingdom
| | - Nigel J. Brunskill
- Department of Cardiovascular Sciences, College of Life Sciences, University of Leicester, University Hospitals of Leicester NHS Trust, Leicester, United Kingdom
- Nantong-Leicester Joint Institute of Kidney Science, Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Bin Yang
- Department of Cardiovascular Sciences, College of Life Sciences, University of Leicester, University Hospitals of Leicester NHS Trust, Leicester, United Kingdom
- Nantong-Leicester Joint Institute of Kidney Science, Nephrology, Affiliated Hospital of Nantong University, Nantong, China
- *Correspondence: Bin Yang,
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3
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Lu M, Zhao J, Wang X, Zhang J, Shan F, Jiang D. Research advances in prevention and treatment of burn wound deepening in early stage. Front Surg 2022; 9:1015411. [PMID: 36338639 PMCID: PMC9634408 DOI: 10.3389/fsurg.2022.1015411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 09/28/2022] [Indexed: 11/22/2022] Open
Abstract
The burn wound is a dynamic living environment that is affected by many factors. It may present a progressive expansion of necrosis into the initially viable zone of stasis within a short time postburn. Therefore, how to salvage of the zone of stasis is of crucial importance in prevention and treatment strategies of burn wound progressive deepening. This review focuses on the cellular basis of tissue injury and the current progress of prevention and treatment strategies of burn wound progressive deepening, in order to provide references for the treatment of burn wounds in the early phase.
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Affiliation(s)
- Meiqi Lu
- Department of Burns and Plastic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jie Zhao
- Department of Emergency Medical Center, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaochuan Wang
- Department of Emergency Medical Center, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jingjuan Zhang
- Department of Burns and Plastic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Fei Shan
- Department of Emergency Medical Center, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Duyin Jiang
- Department of Burns and Plastic Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China,Department of Emergency Medical Center, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China,Correspondence: Duyin Jiang
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4
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Lai YF, Lin TY, Ho PK, Chen YH, Huang YC, Lu DW. Erythropoietin in Optic Neuropathies: Current Future Strategies for Optic Nerve Protection and Repair. Int J Mol Sci 2022; 23:ijms23137143. [PMID: 35806148 PMCID: PMC9267007 DOI: 10.3390/ijms23137143] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/13/2022] [Accepted: 06/24/2022] [Indexed: 02/05/2023] Open
Abstract
Erythropoietin (EPO) is known as a hormone for erythropoiesis in response to anemia and hypoxia. However, the effect of EPO is not only limited to hematopoietic tissue. Several studies have highlighted the neuroprotective function of EPO in extra-hematopoietic tissues, especially the retina. EPO could interact with its heterodimer receptor (EPOR/βcR) to exert its anti-apoptosis, anti-inflammation and anti-oxidation effects in preventing retinal ganglion cells death through different intracellular signaling pathways. In this review, we summarized the available pre-clinical studies of EPO in treating glaucomatous optic neuropathy, optic neuritis, non-arteritic anterior ischemic optic neuropathy and traumatic optic neuropathy. In addition, we explore the future strategies of EPO for optic nerve protection and repair, including advances in EPO derivates, and EPO deliveries. These strategies will lead to a new chapter in the treatment of optic neuropathy.
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Affiliation(s)
- Yi-Fen Lai
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (Y.-F.L.); (T.-Y.L.); (Y.-H.C.)
| | - Ting-Yi Lin
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (Y.-F.L.); (T.-Y.L.); (Y.-H.C.)
| | - Pin-Kuan Ho
- School of Dentistry, National Defense Medical Center, Taipei 11490, Taiwan;
| | - Yi-Hao Chen
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (Y.-F.L.); (T.-Y.L.); (Y.-H.C.)
| | - Yu-Chuan Huang
- School of Pharmacy, National Defense Medical Center, Taipei 11490, Taiwan
- Department of Research and Development, National Defense Medical Center, Taipei 11490, Taiwan
- Correspondence: (Y.-C.H.); (D.-W.L.); Tel.: +886-2-87923100 (Y.-C.H.); +886-2-87927163 (D.-W.L.)
| | - Da-Wen Lu
- Department of Ophthalmology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (Y.-F.L.); (T.-Y.L.); (Y.-H.C.)
- Correspondence: (Y.-C.H.); (D.-W.L.); Tel.: +886-2-87923100 (Y.-C.H.); +886-2-87927163 (D.-W.L.)
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5
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Wu Y, Zwaini ZD, Brunskill NJ, Zhang X, Wang H, Chana R, Stover CM, Yang B. Properdin Deficiency Impairs Phagocytosis and Enhances Injury at Kidney Repair Phase Post Ischemia-Reperfusion. Front Immunol 2021; 12:697760. [PMID: 34552582 PMCID: PMC8450566 DOI: 10.3389/fimmu.2021.697760] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 08/05/2021] [Indexed: 01/20/2023] Open
Abstract
Properdin, a positive regulator of complement alternative pathway, participates in renal ischemia–reperfusion (IR) injury and also acts as a pattern-recognition molecule affecting apoptotic T-cell clearance. However, the role of properdin in tubular epithelial cells (TECs) at the repair phase post IR injury is not well defined. This study revealed that properdin knockout (PKO) mice exhibited greater injury in renal function and histology than wild-type (WT) mice post 72-h IR, with more apoptotic cells and macrophages in tubular lumina, increased active caspase-3 and HMGB1, but better histological structure at 24 h. Raised erythropoietin receptor by IR was furthered by PKO and positively correlated with injury and repair markers. Properdin in WT kidneys was also upregulated by IR, while H2O2-increased properdin in TECs was reduced by its small-interfering RNA (siRNA), with raised HMGB1 and apoptosis. Moreover, the phagocytic ability of WT TECs, analyzed by pHrodo Escherichia coli bioparticles, was promoted by H2O2 but inhibited by PKO. These results were confirmed by counting phagocytosed H2O2-induced apoptotic TECs by in situ end labeling fragmented DNAs but not affected by additional serum with/without properdin. Taken together, PKO results in impaired phagocytosis at the repair phase post renal IR injury. Properdin locally produced by TECs plays crucial roles in optimizing damaged cells and regulating phagocytic ability of TECs to effectively clear apoptotic cells and reduce inflammation.
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Affiliation(s)
- Yuanyuan Wu
- Department of Cardiovascular Sciences, College of Life Sciences, University of Leicester, University Hospitals of Leicester NHS Trust, Leicester, United Kingdom.,Basic Medical Research Centre, Medical School of Nantong University, Nantong, China
| | - Zinah D Zwaini
- Department of Respiratory Sciences, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - Nigel J Brunskill
- Department of Cardiovascular Sciences, College of Life Sciences, University of Leicester, University Hospitals of Leicester NHS Trust, Leicester, United Kingdom.,Nantong-Leicester Joint Institute of Kidney Science, Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Xinyue Zhang
- Department of Cardiovascular Sciences, College of Life Sciences, University of Leicester, University Hospitals of Leicester NHS Trust, Leicester, United Kingdom
| | - Hui Wang
- Nantong-Leicester Joint Institute of Kidney Science, Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Ravinder Chana
- Department of Respiratory Sciences, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - Cordula M Stover
- Department of Respiratory Sciences, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - Bin Yang
- Department of Cardiovascular Sciences, College of Life Sciences, University of Leicester, University Hospitals of Leicester NHS Trust, Leicester, United Kingdom.,Nantong-Leicester Joint Institute of Kidney Science, Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
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6
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Yao M, Domogatskaya A, Ågren N, Watanabe M, Tokodai K, Brines M, Cerami A, Ericzon BG, Kumagai-Braesch M, Lundgren T. Cibinetide Protects Isolated Human Islets in a Stressful Environment and Improves Engraftment in the Perspective of Intra Portal Islet Transplantation. Cell Transplant 2021; 30:9636897211039739. [PMID: 34498509 PMCID: PMC8436319 DOI: 10.1177/09636897211039739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
During intra-portal pancreatic islet transplantation (PITx), innate immune reactions such as the instant blood mediated inflammatory reaction (IBMIR) cause an immediate loss of islets. The non-hematopoietic erythropoietin analogue cibinetide has previously shown islet-protective effects in mouse PITx. Herein, we aimed to confirm cibinetide's efficacy on human islets, and to characterize its effect on IBMIR. We cultured human islets with pro-inflammatory cytokines for 18 hours with or without cibinetide. ATP content and caspase 3/7 activity were measured. Dynamic glucose perfusion assay was used to evaluate islet function. To evaluate cibinetides effect on IBMIR, human islets were incubated in heparinized polyvinyl chloride tubing system with ABO compatible blood and rotated for 60 minutes to mimic the portal vein system. Moreover, human islets were transplanted into athymic mice livers via the portal vein with or without perioperative cibinetide treatment. The mice were sacrificed six days following transplantation and the livers were analyzed for human insulin and serum for human C-peptide levels. Histological examination of recipient livers to evaluate islet graft infiltration by CD11b+ cells was performed. Our results show that cibinetide maintained human islet ATP levels and reduced the caspase 3/7 activity during culture with pro-inflammatory cytokines and improved their insulin secreting capacity. In the PVC loop system, administration of cibinetide reduced the IBMIR-induced platelet consumption. In human islet to athymic mice PITx, cibinetide treatment showed an increased amount of human insulin in the livers and higher serum human C-peptide, while histological examination of the livers showed reduced infiltration of pro-inflammatory CD11b+ cells around islets grafts compared to the controls. In summary, Cibinetide protected isolated human islets in a pro-inflammatory milieu and reduced IBMIR related platelet consumption. It improved engraftment of human islets in athymic mice. The study confirms that cibinetide is a promising agent to be used in clinical PITx.
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Affiliation(s)
- Ming Yao
- Division of Transplantation Surgery, CLINTEC, Karolinska Institutet, and Department of Transplantation Surgery, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Anna Domogatskaya
- Division of Transplantation Surgery, CLINTEC, Karolinska Institutet, and Department of Transplantation Surgery, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Nils Ågren
- Division of Transplantation Surgery, CLINTEC, Karolinska Institutet, and Department of Transplantation Surgery, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Masaaki Watanabe
- Division of Transplantation Surgery, CLINTEC, Karolinska Institutet, and Department of Transplantation Surgery, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Kazuaki Tokodai
- Division of Transplantation Surgery, CLINTEC, Karolinska Institutet, and Department of Transplantation Surgery, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | | | | | - Bo-Göran Ericzon
- Division of Transplantation Surgery, CLINTEC, Karolinska Institutet, and Department of Transplantation Surgery, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Makiko Kumagai-Braesch
- Division of Transplantation Surgery, CLINTEC, Karolinska Institutet, and Department of Transplantation Surgery, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Torbjörn Lundgren
- Division of Transplantation Surgery, CLINTEC, Karolinska Institutet, and Department of Transplantation Surgery, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
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Multifaceted roles of a bioengineered nanoreactor in repressing radiation-induced lung injury. Biomaterials 2021; 277:121103. [PMID: 34478930 DOI: 10.1016/j.biomaterials.2021.121103] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/03/2021] [Accepted: 08/26/2021] [Indexed: 12/30/2022]
Abstract
Radiation-induced lung injury (RILI) is a potentially fatal and dose-limiting complication of thoracic cancer radiotherapy. However, effective therapeutic agents for this condition are limited. Here, we describe a novel strategy to exert additive effects of a non-erythropoietic EPO derivative (ARA290), along with a free radical scavenger, superoxide dismutase (SOD), using a bioengineered nanoreactor (SOD@ARA290-HBc). ARA290-chimeric nanoreactor makes SOD present in a confined reaction space by encapsulation into its interior to heighten stability against denaturing stimuli. In a RILI mouse model, intratracheal administration of SOD@ARA290-HBc was shown to significantly ameliorate acute radiation pneumonitis and pulmonary fibrosis. Our investigations revealed that SOD@ARA290-HBc performs its radioprotective effects by protecting against radiation induced alveolar epithelial cell apoptosis and ferroptosis, suppressing oxidative stress, inhibiting inflammation and by modulating the infiltrated macrophage phenotype, or through a combination of these mechanisms. In conclusion, SOD@ARA29-HBc is a potential therapeutic agent for RILI, and given its multifaceted roles, it may be further developed as a translational nanomedicine for other related disorders.
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8
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Wu Y, Yang B. Erythropoietin Receptor/β Common Receptor: A Shining Light on Acute Kidney Injury Induced by Ischemia-Reperfusion. Front Immunol 2021; 12:697796. [PMID: 34276689 PMCID: PMC8278521 DOI: 10.3389/fimmu.2021.697796] [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: 04/20/2021] [Accepted: 05/17/2021] [Indexed: 12/29/2022] Open
Abstract
Acute kidney injury (AKI) is a health problem worldwide, but there is a lack of early diagnostic biomarkers and target-specific treatments. Ischemia-reperfusion (IR), a major cause of AKI, not only induces kidney injury, but also stimulates the self-defense system including innate immune responses to limit injury. One of these responses is the production of erythropoietin (EPO) by adjacent normal tissue, which is simultaneously triggered, but behind the action of its receptors, either by the homodimer EPO receptor (EPOR)2 mainly involved in erythropoiesis or the heterodimer EPOR/β common receptor (EPOR/βcR) which has a broad range of biological protections. EPOR/βcR is expressed in several cell types including tubular epithelial cells at low levels or absent in normal kidneys, but is swiftly upregulated by hypoxia and inflammation and also translocated to cellular membrane post IR. EPOR/βcR mediates anti-apoptosis, anti-inflammation, pro-regeneration, and remodeling via the PI3K/Akt, STAT3, and MAPK signaling pathways in AKI. However, the precise roles of EPOR/βcR in the pathogenesis and progression of AKI have not been well defined, and its potential as an earlier biomarker for AKI diagnosis and monitoring repair or chronic progression requires further investigation. Here, we review biological functions and mechanistic signaling pathways of EPOR/βcR in AKI, and discuss its potential clinical applications as a biomarker for effective diagnosis and predicting prognosis, as well as directing cell target drug delivery.
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Affiliation(s)
- Yuanyuan Wu
- Basic Medical Research Centre, Medical School, Nantong University, Nantong, China.,Nantong-Leicester Joint Institute of Kidney Science, Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Bin Yang
- Nantong-Leicester Joint Institute of Kidney Science, Nephrology, Affiliated Hospital of Nantong University, Nantong, China.,Department of Cardiovascular Sciences, College of Life Sciences, University of Leicester, Leicester, United Kingdom
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9
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Improvement of Islet Allograft Function Using Cibinetide, an Innate Repair Receptor Ligand. Transplantation 2021; 104:2048-2058. [PMID: 32345869 DOI: 10.1097/tp.0000000000003284] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND During intraportal pancreatic islet transplantation (PITx), early inflammatory reactions cause an immediate loss of more than half of the transplanted graft and potentiate subsequent allograft rejection. Previous findings suggest that cibinetide, a selective innate repair receptor agonist, exerts islet protective and antiinflammatory properties and improved transplant efficacy in syngeneic mouse PITx model. In a stepwise approach toward a clinical application, we have here investigated the short- and long-term effects of cibinetide in an allogeneic mouse PITx model. METHODS Streptozotocin-induced diabetic C57BL/6N (H-2) mice were transplanted with 320 (marginal) or 450 (standard) islets from BALB/c (H-2) mice via the portal vein. Recipients were treated perioperative and thereafter daily during 14 d with cibinetide (120 µg/kg), with or without tacrolimus injection (0.4 mg/kg/d) during days 4-14 after transplantation. Graft function was assessed using nonfasting glucose measurements. Relative gene expressions of proinflammatory cytokines and proinsulin of the graft-bearing liver were assessed by quantitative polymerase chain reaction. Cibinetide's effects on dendritic cell maturation were investigated in vitro. RESULTS Cibinetide ameliorated the local inflammatory responses in the liver and improved glycemic control immediately after allogeneic PITx and significantly delayed the onset of allograft loss. Combination treatment with cibinetide and low-dose tacrolimus significantly improved long-term graft survival following allogeneic PITx. In vitro experiments indicated that cibinetide lowered bone-marrow-derived-immature-dendritic cell maturation and subsequently reduced allogeneic T-cell response. CONCLUSIONS Cibinetide reduced the initial transplantation-related severe inflammation and delayed the subsequent alloreactivity. Cibinetide, in combination with low-dose tacrolimus, could significantly improve long-term graft survival in allogeneic PITx.
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10
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Recombinant Erythropoietin Provides Protection against Renal Fibrosis in Adenine-Induced Chronic Kidney Disease. Mediators Inflamm 2020; 2020:8937657. [PMID: 32184703 PMCID: PMC7063184 DOI: 10.1155/2020/8937657] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 01/14/2020] [Accepted: 02/07/2020] [Indexed: 02/06/2023] Open
Abstract
Chronic kidney disease (CKD) causes anemia by renal damage. In CKD, the kidney is submitted to hypoxia, persistent inflammation, leading to fibrosis and permanent loss of renal function. Human recombinant erythropoietin (rEPO) has been widely used to treat CKD-associated anemia and is known to possess organ-protective properties that are independent from its well-established hematopoietic effects. Nonhematopoietic effects of EPO are mediated by an alternative receptor that is proposed to consist of a heterocomplex between the erythropoietin receptor (EPOR) and the beta common receptor (βcR). The present study explored the effects of rEPO to prevent renal fibrosis in adenine-induced chronic kidney disease (Ad-CKD) and their association with the expression of the heterodimer EPOR/βcR. Male Wistar rats were randomized to control group (CTL), adenine-fed rats (Ad-CKD), and Ad-CKD with treatment of rEPO (1050 IU/kg, once weekly for 4 weeks). Ad-CKD rats exhibited anemia, uremia, decreased renal function, increased infiltration of inflammatory cells, tubular atrophy, and fibrosis. rEPO treatment not only corrected anemia but reduced uremia and partially improved renal function as well. In addition, we observed that rEPO diminishes tubular injury, prevents fibrosis deposition, and induces the EPOR/βcR heteroreceptor. The findings may explain the extrahematopoietic effects of rEPO in CKD and provide new strategies for the treatment of renal fibrosis in CKD.
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11
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He L, Cohen EB, Edwards APB, Xavier-Ferrucio J, Bugge K, Federman RS, Absher D, Myers RM, Kragelund BB, Krause DS, DiMaio D. Transmembrane Protein Aptamer Induces Cooperative Signaling by the EPO Receptor and the Cytokine Receptor β-Common Subunit. iScience 2019; 17:167-181. [PMID: 31279934 PMCID: PMC6614117 DOI: 10.1016/j.isci.2019.06.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 05/10/2019] [Accepted: 06/17/2019] [Indexed: 12/13/2022] Open
Abstract
The erythropoietin receptor (EPOR) plays an essential role in erythropoiesis and other cellular processes by forming distinct signaling complexes composed of EPOR homodimers or hetero-oligomers between the EPOR and another receptor, but the mechanism of heteroreceptor assembly and signaling is poorly understood. We report here a 46-residue, artificial transmembrane protein aptamer, designated ELI-3, that binds and activates the EPOR and induces growth factor independence in murine BaF3 cells expressing the EPOR. ELI-3 requires the transmembrane domain and JAK2-binding sites of the EPOR for activity, but not the cytoplasmic tyrosines that mediate canonical EPOR signaling. Instead, ELI-3-induced proliferation and activation of JAK/STAT signaling requires the transmembrane and cytoplasmic domains of the cytokine receptor β-common subunit (βcR) in addition to the EPOR. Moreover, ELI-3 fails to induce erythroid differentiation of primary human hematopoietic progenitor cells but inhibits nonhematopoietic cell death induced by serum withdrawal.
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Affiliation(s)
- Li He
- Department of Genetics, Yale School of Medicine, P.O. Box 208005, New Haven, CT 06520-8005, USA
| | - Emily B Cohen
- Department of Genetics, Yale School of Medicine, P.O. Box 208005, New Haven, CT 06520-8005, USA
| | - Anne P B Edwards
- Department of Genetics, Yale School of Medicine, P.O. Box 208005, New Haven, CT 06520-8005, USA
| | - Juliana Xavier-Ferrucio
- Department of Laboratory Medicine, Yale School of Medicine, P.O. Box 208073, New Haven, CT 06520-8073, USA
| | - Katrine Bugge
- Structural Biology and NMR Laboratory, The Linderstrøm-Lang Centre for Protein Science and Integrative Structural Biology at University of Copenhagen (ISBUC), Department of Biology, University of Copenhagen, Copenhagen N 2200, Denmark
| | - Ross S Federman
- Department of Immunobiology, Yale School of Medicine, P.O. Box 208011, New Haven, CT 06520-8011, USA
| | - Devin Absher
- HudsonAlpha Institute for Biotechnology, 601 Genome Way, Huntsville, AL 35806, USA
| | - Richard M Myers
- HudsonAlpha Institute for Biotechnology, 601 Genome Way, Huntsville, AL 35806, USA
| | - Birthe B Kragelund
- Structural Biology and NMR Laboratory, The Linderstrøm-Lang Centre for Protein Science and Integrative Structural Biology at University of Copenhagen (ISBUC), Department of Biology, University of Copenhagen, Copenhagen N 2200, Denmark
| | - Diane S Krause
- Department of Laboratory Medicine, Yale School of Medicine, P.O. Box 208073, New Haven, CT 06520-8073, USA; Yale Cancer Center, P.O. Box 208028, New Haven, CT 06520-8028, USA
| | - Daniel DiMaio
- Department of Genetics, Yale School of Medicine, P.O. Box 208005, New Haven, CT 06520-8005, USA; Department of Therapeutic Radiology, Yale School of Medicine, P.O. Box 208040, New Haven, CT 06520-8040, USA; Department of Molecular Biophysics & Biochemistry, P.O. Box 208114, Yale University, New Haven, CT 06520-8114, USA; Yale Cancer Center, P.O. Box 208028, New Haven, CT 06520-8028, USA.
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12
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Abstract
Erythropoietin (EPO) is a 34kD pleiotropic cytokine that was first identified as being essential for red blood cell (RBC) production. It is now recognized however that EPO is produced by many tissues. It plays a key role in the modulation of the response to injury, inflammation, and tissue hypoxia via the inhibition of apoptosis. Large clinical trials in the critically ill failed to demonstrate a role for EPO as an RBC transfusion sparing agent; however, improved clinical outcomes, attributable to EPO role in tissue protection are observed in critically ill trauma patients. Further research to confirm or refute these observations is required.
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Affiliation(s)
- Craig French
- Western Health, Footscray Hospital, Gordon Street Footscray, Melbourne, VIC 3011, Australia; The University of Melbourne, Parkville, VIC 3010, Australia; Monash University, School of Public Health and Preventive Medicine, 553 St Kilda Road, Melbourne, VIC 3004, Australia.
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13
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Yamanaka K, Eldeiry M, Roda G, Aftab M, Reece TB. Potential benefit of pharmacological induction of beta common receptor. J Thorac Cardiovasc Surg 2018; 156:1796-1797. [PMID: 30336913 DOI: 10.1016/j.jtcvs.2018.07.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 07/09/2018] [Indexed: 10/28/2022]
Affiliation(s)
- Katsuhiro Yamanaka
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colo
| | - Mohamed Eldeiry
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colo
| | - Gavriel Roda
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colo
| | - Muhammad Aftab
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colo
| | - T Brett Reece
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colo
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14
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EPO does not promote interaction between the erythropoietin and beta-common receptors. Sci Rep 2018; 8:12457. [PMID: 30127368 PMCID: PMC6102255 DOI: 10.1038/s41598-018-29865-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 07/19/2018] [Indexed: 12/13/2022] Open
Abstract
A direct interaction between the erythropoietin (EPOR) and the beta-common (βc) receptors to form an Innate Repair Receptor (IRR) is controversial. On one hand, studies have shown a functional link between EPOR and βc receptor in tissue protection while others have shown no involvement of the βc receptor in tissue repair. To date there is no biophysical evidence to confirm a direct association of the two receptors either in vitro or in vivo. We investigated the existence of an interaction between the extracellular regions of EPOR and the βc receptor in silico and in vitro (either in the presence or absence of EPO or EPO-derived peptide ARA290). Although a possible interaction between EPOR and βc was suggested by our computational and genomic studies, our in vitro biophysical analysis demonstrates that the extracellular regions of the two receptors do not specifically associate. We also explored the involvement of the βc receptor gene (Csf2rb) under anaemic stress conditions and found no requirement for the βc receptor in mice. In light of these studies, we conclude that the extracellular regions of the EPOR and the βc receptor do not directly interact and that the IRR is not involved in anaemic stress.
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15
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Castillo C, Zaror S, Gonzalez M, Hidalgo A, Burgos CF, Cabezas OI, Hugues F, Jiménez SP, González-Horta E, González-Chavarría I, Gavilán J, Montesino R, Sánchez O, Lopez MG, Fuentealba J, Toledo JR. Neuroprotective effect of a new variant of Epo nonhematopoietic against oxidative stress. Redox Biol 2018; 14:285-294. [PMID: 28987867 PMCID: PMC5975214 DOI: 10.1016/j.redox.2017.09.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/05/2017] [Accepted: 09/18/2017] [Indexed: 12/19/2022] Open
Abstract
Human erythropoietin is mainly recognized for its hematopoietic function; however, by binding to its receptor (EpoR), it can activate different signaling pathways as STAT, PI3K, MAPK and RAS to increase cellular differentiation or provide neuroprotective effects, among others. A recombinant human erythropoietin variant with low glycosylation and without hematopoietic effect (EpoL) was purified from skimmed goat milk. Recombinant human erythropoietin (Epo) was obtained from CHO cell line and used as control to compare EpoL effects. Neuroprotection studies were performed in PC12 cells and rat hippocampal slices. Cells were pretreated during 1h with EpoL or Epo and exposed to oxidative agents (H2O2 or FCCP); cell viability was assayed at the end of the experiment by the MTT method. Hippocampal slices were exposed to 15min of oxygen and glucose deprivation (OGD) and the neuroprotective drugs EpoL or Epo were incubated for 2h post-OGD in re-oxygenated medium. Cell cultures stressed with oxidative agents, and pretreated with EpoL, showed neuroprotective effects of 30% at a concentration 10 times lower than that of Epo. Moreover, similar differences were observed in OGD ex vivo assays. Neuroprotection elicited by EpoL was lost when an antibody against EpoR was present, indicating that its effect is EpoR-dependent. In conclusion, our results suggest that EpoL has a more potent neuroprotective profile than Epo against oxidative stress, mediated by activation of EpoR, thus EpoL represents an important target to develop a potential biopharmaceutical to treat different central nervous system pathologies related to oxidative stress such as stroke or neurodegenerative diseases.
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Affiliation(s)
- C Castillo
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - S Zaror
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - M Gonzalez
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - A Hidalgo
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - C F Burgos
- Laboratory of Screening of Neuroactive Compound, Physiology Department. School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - O I Cabezas
- Clinical Sciences Department, School of Veterinary Sciences, Universidad de Concepción, Avenida Vicente Méndez 595, Chillan, Chile
| | - F Hugues
- Clinical Sciences Department, School of Veterinary Sciences, Universidad de Concepción, Avenida Vicente Méndez 595, Chillan, Chile
| | - S P Jiménez
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - E González-Horta
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - I González-Chavarría
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - J Gavilán
- Laboratory of Screening of Neuroactive Compound, Physiology Department. School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - R Montesino
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - O Sánchez
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - Manuela G Lopez
- Department of Pharmacology and Therapeutics, "Instituo Teófilo Hernando", Universidad Autónoma de Madrid, Spain
| | - J Fuentealba
- Laboratory of Screening of Neuroactive Compound, Physiology Department. School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - J R Toledo
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile.
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16
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Ostrowski D, Heinrich R. Alternative Erythropoietin Receptors in the Nervous System. J Clin Med 2018; 7:E24. [PMID: 29393890 PMCID: PMC5852440 DOI: 10.3390/jcm7020024] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 01/24/2018] [Accepted: 01/26/2018] [Indexed: 12/18/2022] Open
Abstract
In addition to its regulatory function in the formation of red blood cells (erythropoiesis) in vertebrates, Erythropoietin (Epo) contributes to beneficial functions in a variety of non-hematopoietic tissues including the nervous system. Epo protects cells from apoptosis, reduces inflammatory responses and supports re-establishment of compromised functions by stimulating proliferation, migration and differentiation to compensate for lost or injured cells. Similar neuroprotective and regenerative functions of Epo have been described in the nervous systems of both vertebrates and invertebrates, indicating that tissue-protective Epo-like signaling has evolved prior to its erythropoietic function in the vertebrate lineage. Epo mediates its erythropoietic function through a homodimeric Epo receptor (EpoR) that is also widely expressed in the nervous system. However, identification of neuroprotective but non-erythropoietic Epo splice variants and Epo derivatives indicated the existence of other types of Epo receptors. In this review, we summarize evidence for potential Epo receptors that might mediate Epo's tissue-protective function in non-hematopoietic tissue, with focus on the nervous system. In particular, besides EpoR, we discuss three other potential neuroprotective Epo receptors: (1) a heteroreceptor consisting of EpoR and common beta receptor (βcR), (2) the Ephrin (Eph) B4 receptor and (3) the human orphan cytokine receptor-like factor 3 (CRLF3).
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Affiliation(s)
- Daniela Ostrowski
- Department of Biology, Truman State University, Kirksville, MO 63501, USA.
| | - Ralf Heinrich
- Department of Cellular Neurobiology, Institute for Zoology, Georg-August-University Göttingen, 37073 Göttingen, Germany.
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17
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ARA290, a Specific Agonist of Erythropoietin/CD131 Heteroreceptor, Improves Circulating Endothelial Progenitors' Angiogenic Potential and Homing Ability. Shock 2018; 46:390-7. [PMID: 27172159 DOI: 10.1097/shk.0000000000000606] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Alternate erythropoietin (EPO)-mediated signaling via the EPOR/CD131 heteromeric receptor exerts the tissue-protective actions of EPO in a wide spectrum of injuries, especially ischemic diseases. Circulating endothelial progenitor cells contribute to endothelial repair and post-natal angiogenesis after chronic ischemic injury. This work aims to investigate the effects of ARA290, a specific agonist of EPOR/CD131 complex, on a subpopulation of endothelial progenitor cells named endothelial colony-forming cells (ECFCs) and to characterize its contribution to ECFCs-induced angiogenesis after peripheral ischemia. METHODS ARA290 effects on ECFCs properties were studied using cell cultures in vitro. We injected ARA290 to mice undergoing chronic hindlimb ischemia (CLI) in combination with ECFC transplantation. The homing of transplanted ECFC to ischemic tissue in vivo was assessed by SPECT/CT imaging. RESULTS In vitro, ARA290 enhanced the proliferation, migration, and resistance to H2O2-induced apoptosis of ECFCs. After ECFC transplantation to mice with CLI, a single ARA290 injection enhanced the ischemic/non-ischemic ratio of hindlimb blood flow and capillary density after 28 days and the homing of radiolabeled transplanted cells to the ischemic leg 4 h after transplantation. Prior neutralization of platelet-endothelial cell adhesion molecule-1 (CD31) expressed by the transplanted cells inhibited ARA290-induced improvement of homing. DISCUSSION ARA290 induces specific improvement of the biological activity of ECFCs. ARA290 administration in combination with ECFCs has a synergistic effect on post-ischemic angiogenesis in vivo. This potentiation appears to rely, at least in part, on a CD31-dependent increase in homing of the transplanted cells to the ischemic tissue.
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18
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Bitto A, Irrera N, Pizzino G, Pallio G, Mannino F, Vaccaro M, Arcoraci V, Aliquò F, Minutoli L, Colonna MR, Galeano MR, Brines M, De Ponte C, Collino M, Squadrito F, Altavilla D. Activation of the EPOR-β common receptor complex by cibinetide ameliorates impaired wound healing in mice with genetic diabetes. Biochim Biophys Acta Mol Basis Dis 2017; 1864:632-639. [PMID: 29223734 DOI: 10.1016/j.bbadis.2017.12.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 11/20/2017] [Accepted: 12/05/2017] [Indexed: 12/19/2022]
Abstract
Diabetes is characterized by poor wound healing which currently lacks an efficacious treatment. The innate repair receptor (IRR) is a master regulator of tissue protection and repair which is expressed as a response injury or metabolic stress, including in diabetes. Activation of the IRR might provide benefit for diabetic wound healing. A specific IRR agonist cibinetide was administered in an incisional wound healing model performed mice with genetic diabetes (db+/db+) and compared to the normal wild-type. Animals were treated daily with cibinetide (30μg/kg/s.c.) or vehicle and euthanized 3, 7, and 14days after the injury to quantitate vascular endothelial growth factor (VEGF), malondialdehyde (MAL), phospho-Akt (pAkt), phospho e-NOS (p-eNOS), and nitrite/nitrate content within the wound. Additional evaluations included quantification of skin histological change, angiogenesis, scar strength, and time to complete wound closure. Throughout the wound healing process diabetic animals treated with vehicle exhibited increased wound MAL with reduced VEGF, pAkt, peNOS and nitrite/nitrate, all associated with poor re-epitheliziation, angiogenesis, and wound breaking strength. Cibenitide administration significantly improved these abnormalities. The results suggest that cibinetide-mediated IRR activation may represent an interesting strategy to treat diabetes-associated wound healing.
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Affiliation(s)
- Alessandra Bitto
- Department of Clinical and Experimental Medicine, University of Messina, Italy
| | - Natasha Irrera
- Department of Clinical and Experimental Medicine, University of Messina, Italy
| | - Gabriele Pizzino
- Department of Clinical and Experimental Medicine, University of Messina, Italy
| | - Giovanni Pallio
- Department of Clinical and Experimental Medicine, University of Messina, Italy
| | - Federica Mannino
- Department of Clinical and Experimental Medicine, University of Messina, Italy
| | - Mario Vaccaro
- Department of Clinical and Experimental Medicine, University of Messina, Italy
| | - Vincenzo Arcoraci
- Department of Clinical and Experimental Medicine, University of Messina, Italy
| | - Federica Aliquò
- Department of Clinical and Experimental Medicine, University of Messina, Italy
| | - Letteria Minutoli
- Department of Clinical and Experimental Medicine, University of Messina, Italy
| | | | | | | | - Chiara De Ponte
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Italy
| | - Massimo Collino
- Department of Drug Science and Technology, University of Turin, Italy
| | - Francesco Squadrito
- Department of Clinical and Experimental Medicine, University of Messina, Italy.
| | - Domenica Altavilla
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Italy
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Wang S, Zhang C, Niyazi S, Zheng L, Li J, Zhang W, Xu M, Rong R, Yang C, Zhu T. A novel cytoprotective peptide protects mesenchymal stem cells against mitochondrial dysfunction and apoptosis induced by starvation via Nrf2/Sirt3/FoxO3a pathway. J Transl Med 2017; 15:33. [PMID: 28202079 PMCID: PMC5309997 DOI: 10.1186/s12967-017-1144-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 02/08/2017] [Indexed: 01/11/2023] Open
Abstract
Background Mesenchymal stem cell (MSC) has been widely explored in the past decade as a cell-based treatment for various diseases. However, poor survival of adaptively transferred MSCs limits their clinical therapeutic potentials, which is largely ascribed to the nutrient starvation. In this study, we determined whether a novel kidney protective peptide CHBP could protect MSCs against starvation and invested the underlying mechanisms. Methods MSCs were subjected to serum deprivation and CHBP of graded concentrations was administered. Cell viability and apoptosis were detected by CCK-8, Annexin V/PI assay and Hoechst staining. ROS generation, mitochondrial membrane potential indicated by JC-1 and mitochondrial mass were measured by flow cytometry. The location of cytochrome c within cells was observed under fluorescence microscopy. Expressions of Nrf2, Sirt3, and FoxO3a were analyzed by western blot. In addition, preconditioning MSCs with CHBP was applied to test the possible protection against starvation. Finally, the effect of CHBP on the differentiation and self-renewal capacity of MSCs was also examined. Results CHBP improved cell viability and suppressed apoptosis in a dose dependent manner. Starvation resulted in the mitochondrial dysfunction and treatment of CHBP could alleviate mitochondrial stress by diminishing oxidative injury of ROS, restoring mitochondrial membrane potential and maintaining mitochondrial membrane integrity. Importantly, Nrf2/Sirt3/FoxO3a pathway was activated by CHBP and Sirt3 knockdown partially abolished the protection of CHBP. Moreover, MSCs pretreated with CHBP were more resistant to starvation. Under normal condition, CHBP exerted little effects on the differential and self-renewal capacity of MSCs. Conclusions The present study demonstrated the efficient protection of CHBP upon MSCs against starvation-induced mitochondrial dysfunction and apoptosis and indicated possible involvement of Nrf2/Sirt3/FoxO3a pathway in the protective effect.
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Affiliation(s)
- Shuo Wang
- Department of Urology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Chao Zhang
- Department of Urology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Sidikejiang Niyazi
- Department of Urology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Long Zheng
- Department of Urology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Jiawei Li
- Department of Urology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Weitao Zhang
- Department of Urology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Ming Xu
- Department of Urology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Ruiming Rong
- Department of Urology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China.,Department of Transfusion, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Cheng Yang
- Department of Urology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China. .,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China.
| | - Tongyu Zhu
- Department of Urology, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China. .,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China. .,Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.
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20
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Heikal L, Ghezzi P, Mengozzi M, Stelmaszczuk B, Feelisch M, Ferns GA. Erythropoietin and a nonerythropoietic peptide analog promote aortic endothelial cell repair under hypoxic conditions: role of nitric oxide. HYPOXIA 2016; 4:121-133. [PMID: 27800514 PMCID: PMC5085277 DOI: 10.2147/hp.s104377] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The cytoprotective effects of erythropoietin (EPO) and an EPO-related nonerythropoietic analog, pyroglutamate helix B surface peptide (pHBSP), were investigated in an in vitro model of bovine aortic endothelial cell injury under normoxic (21% O2) and hypoxic (1% O2) conditions. The potential molecular mechanisms of these effects were also explored. Using a model of endothelial injury (the scratch assay), we found that, under hypoxic conditions, EPO and pHBSP enhanced scratch closure by promoting cell migration and proliferation, but did not show any effect under normoxic conditions. Furthermore, EPO protected bovine aortic endothelial cells from staurosporine-induced apoptosis under hypoxic conditions. The priming effect of hypoxia was associated with stabilization of hypoxia inducible factor-1α, EPO receptor upregulation, and decreased Ser-1177 phosphorylation of endothelial nitric oxide synthase (NOS); the effect of hypoxia on the latter was rescued by EPO. Hypoxia was associated with a reduction in nitric oxide (NO) production as assessed by its oxidation products, nitrite and nitrate, consistent with the oxygen requirement for endogenous production of NO by endothelial NOS. However, while EPO did not affect NO formation in normoxia, it markedly increased NO production, in a manner sensitive to NOS inhibition, under hypoxic conditions. These data are consistent with the notion that the tissue-protective actions of EPO-related cytokines in pathophysiological settings associated with poor oxygenation are mediated by NO. These findings may be particularly relevant to atherogenesis and postangioplasty restenosis.
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Affiliation(s)
- Lamia Heikal
- Brighton and Sussex Medical School, Falmer, Brighton
| | - Pietro Ghezzi
- Brighton and Sussex Medical School, Falmer, Brighton
| | | | - Blanka Stelmaszczuk
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital and Institute for Life Sciences, Southampton, UK
| | - Martin Feelisch
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital and Institute for Life Sciences, Southampton, UK
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A Nonhematopoietic Erythropoietin Analogue, ARA 290, Inhibits Macrophage Activation and Prevents Damage to Transplanted Islets. Transplantation 2016; 100:554-62. [PMID: 26683514 DOI: 10.1097/tp.0000000000001026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Erythropoietin exerts anti-inflammatory, antiapoptotic, and cytoprotective effects in addition to its hematopoietic action. A nonhematopoietic erythropoietin analogue, ARA 290, has similar properties. The efficacy of pancreatic islet transplantation (PITx) is reduced due to islet damage that occurs during isolation and from the severe inflammatory reactions caused by the transplantation procedure. We investigated whether ARA 290 protects islets and ameliorates inflammatory responses following PITx thus improving engraftment. METHODS The effects of ARA 290 on pancreatic islets of C57BL/6J (H-2) mice and on murine macrophages were investigated using an in vitro culture model. As a marginal PITx, 185 islets were transplanted into the liver of streptozotocin-induced diabetic mice (H-2) via the portal vein. Recipients were given ARA 290 (120 μg/kg) intraperitoneally just before and at 0, 6, and 24 hours after PITx. Liver samples were obtained at 12 hours after PITx, and expression levels of proinflammatory cytokines were assessed. RESULTS ARA 290 protected islets from cytokine-induced damage and apoptosis. Secretion of pro-inflammatory cytokines (IL-6, IL-12, and TNF-α) from macrophages was significantly inhibited by ARA 290. After the marginal PITx, ARA 290 treatment significantly improved the blood glucose levels when compared to those of control animals (P < 0.001). Upregulation of monocyte chemoattractant protein-1, macrophage inflammatory protein-1β, IL-1β, and IL-6 messenger RNA expression within the liver was suppressed by ARA 290 treatment. CONCLUSIONS ARA 290 protected pancreatic islets from cytokine-induced damage and apoptosis and ameliorated the inflammatory response after PITx. ARA 290 appears to be a promising candidate for improvement of PITx.
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22
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Dooley K, Devalliere J, Uygun BE, Yarmush ML. Functionalized Biopolymer Particles Enhance Performance of a Tissue-Protective Peptide under Proteolytic and Thermal Stress. Biomacromolecules 2016; 17:2073-9. [DOI: 10.1021/acs.biomac.6b00280] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Kevin Dooley
- Center for Engineering
in Medicine, Massachusetts General Hospital, Harvard Medical School,
Shriners Hospitals for Children, Boston, Massachusetts 02114, United States
| | - Julie Devalliere
- Center for Engineering
in Medicine, Massachusetts General Hospital, Harvard Medical School,
Shriners Hospitals for Children, Boston, Massachusetts 02114, United States
| | - Basak E. Uygun
- Center for Engineering
in Medicine, Massachusetts General Hospital, Harvard Medical School,
Shriners Hospitals for Children, Boston, Massachusetts 02114, United States
| | - Martin L. Yarmush
- Center for Engineering
in Medicine, Massachusetts General Hospital, Harvard Medical School,
Shriners Hospitals for Children, Boston, Massachusetts 02114, United States
- Department
of Biomedical Engineering, Rutgers University, Piscataway, New Jersey 08854, United States
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23
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Heikal L, Ghezzi P, Mengozzi M, Ferns G. Low Oxygen Tension Primes Aortic Endothelial Cells to the Reparative Effect of Tissue-Protective Cytokines. Mol Med 2015; 21:709-716. [PMID: 26349058 DOI: 10.2119/molmed.2015.00162] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 09/01/2015] [Indexed: 12/11/2022] Open
Abstract
Erythropoietin (EPO) has both erythropoietic and tissue-protective properties. The EPO analogues carbamylated EPO (CEPO) and pyroglutamate helix B surface peptide (pHBSP) lack the erythropoietic activity of EPO but retain the tissue-protective properties that are mediated by a heterocomplex of EPO receptor (EPOR) and the β common receptor (βCR). We studied the action of EPO and its analogues in a model of wound healing where a bovine aortic endothelial cells (BAECs) monolayer was scratched and the scratch closure was assessed over 24 h under different oxygen concentrations. We related the effects of EPO and its analogues on repair to their effect on BAECs proliferation and migration (evaluated using a micro-Boyden chamber). EPO, CEPO and pHBSP enhanced scratch closure only at lower oxygen (5%), while their effect at atmospheric oxygen (21%) was not significant. The mRNA expression of EPOR was doubled in 5% compared with 21% oxygen, and this was associated with increased EPOR assessed by immunofluorescence and Western blot. By contrast, βCR mRNA levels were similar in 5% and 21% oxygen. EPO and its analogues increased both BAECs proliferation and migration, suggesting that both may be involved in the reparative process. The priming effect of low oxygen tension on the action of tissue-protective cytokines may be of relevance to vascular disease, including atherogenesis and restenosis.
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Affiliation(s)
- Lamia Heikal
- Brighton and Sussex Medical School, Brighton, United Kingdom
| | - Pietro Ghezzi
- Brighton and Sussex Medical School, Brighton, United Kingdom
| | | | - Gordon Ferns
- Brighton and Sussex Medical School, Brighton, United Kingdom
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Collino M, Thiemermann C, Cerami A, Brines M. Flipping the molecular switch for innate protection and repair of tissues: Long-lasting effects of a non-erythropoietic small peptide engineered from erythropoietin. Pharmacol Ther 2015; 151:32-40. [DOI: 10.1016/j.pharmthera.2015.02.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 02/18/2015] [Indexed: 01/25/2023]
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