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Pun SH, O’Neill KM, Edgar KS, Gill EK, Moez A, Naderi-Meshkin H, Malla SB, Hookham MB, Alsaggaf M, Madishetti VV, Botezatu B, King W, Brunssen C, Morawietz H, Dunne PD, Brazil DP, Medina RJ, Watson CJ, Grieve DJ. PLAC8-Mediated Activation of NOX4 Signalling Restores Angiogenic Function of Endothelial Colony-Forming Cells in Experimental Hypoxia. Cells 2023; 12:2220. [PMID: 37759443 PMCID: PMC10526321 DOI: 10.3390/cells12182220] [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: 06/19/2023] [Revised: 08/28/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
Ischaemic cardiovascular disease is associated with tissue hypoxia as a significant determinant of angiogenic dysfunction and adverse remodelling. While cord blood-derived endothelial colony-forming cells (CB-ECFCs) hold clear therapeutic potential due to their enhanced angiogenic and proliferative capacity, their impaired functionality within the disease microenvironment represents a major barrier to clinical translation. The aim of this study was to define the specific contribution of NOX4 NADPH oxidase, which we previously reported as a key CB-ECFC regulator, to hypoxia-induced dysfunction and its potential as a therapeutic target. CB-ECFCs exposed to experimental hypoxia demonstrated downregulation of NOX4-mediated reactive oxygen species (ROS) signalling linked with a reduced tube formation, which was partially restored by NOX4 plasmid overexpression. siRNA knockdown of placenta-specific 8 (PLAC8), identified by microarray analysis as an upstream regulator of NOX4 in hypoxic versus normoxic CB-ECFCs, enhanced tube formation, NOX4 expression and hydrogen peroxide generation, and induced several key transcription factors associated with downstream Nrf2 signalling. Taken together, these findings indicated that activation of the PLAC8-NOX4 signalling axis improved CB-ECFC angiogenic functions in experimental hypoxia, highlighting this pathway as a potential target for protecting therapeutic cells against the ischaemic cardiovascular disease microenvironment.
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Affiliation(s)
- Shun Hay Pun
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Karla M. O’Neill
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Kevin S. Edgar
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Eleanor K. Gill
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Arya Moez
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Hojjat Naderi-Meshkin
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Sudhir B. Malla
- Patrick G Johnston Centre for Cancer Research, Queen’s University, Belfast BT9 7AE, UK; (S.B.M.); (P.D.D.)
| | - Michelle B. Hookham
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Mohammed Alsaggaf
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Vinuthna Vani Madishetti
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Bianca Botezatu
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - William King
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Coy Brunssen
- Division of Vascular Endothelium and Microcirculation, TUD Dresden University of Technology, 01307 Dresden, Germany; (C.B.); (H.M.)
| | - Henning Morawietz
- Division of Vascular Endothelium and Microcirculation, TUD Dresden University of Technology, 01307 Dresden, Germany; (C.B.); (H.M.)
| | - Philip D. Dunne
- Patrick G Johnston Centre for Cancer Research, Queen’s University, Belfast BT9 7AE, UK; (S.B.M.); (P.D.D.)
| | - Derek P. Brazil
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Reinhold J. Medina
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - Chris J. Watson
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
| | - David J. Grieve
- Wellcome-Wolfson Institute for Experimental Medicine, Queen’s University, Belfast BT9 7AE, UK; (S.H.P.); (K.M.O.); (K.S.E.); (E.K.G.); (A.M.); (H.N.-M.); (M.B.H.); (M.A.); (V.V.M.); (B.B.); (W.K.); (D.P.B.); (R.J.M.); (C.J.W.)
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Liou YJ, Chen MH, Hsu JW, Huang KL, Huang PH, Bai YM. Circulating endothelial progenitor cell dysfunction in patients with bipolar disorder. Eur Arch Psychiatry Clin Neurosci 2023; 273:1255-1265. [PMID: 36527490 DOI: 10.1007/s00406-022-01530-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022]
Abstract
Dysfunction in circulating endothelial progenitor cells (cEPCs) plays a crucial role in cardiovascular disorders (CVDs). Patients with bipolar disorder (BPD) are at increased risk of developing CVDs. This study examined the associations of the functional properties of cEPCs with BPD and its clinical and cognitive characteristics. We recruited 69 patients with BPD and 41 healthy controls (HCs). The levels of manic, depressive, anxiety, psychosomatic symptoms, subjective cognitive dysfunction, quality of life, and functional disability of the BPD group were evaluated using the Young Mania Rating Scale (YMRS), Clinical Global Impression for BPD (CGI-BP), Hamilton Depression Rating Scale, Montgomery-Åsberg Depression Rating Scale, Hamilton Anxiety Rating Scale, Depression and Somatic Symptoms Scale, Perceived Deficits Questionnaire-Depression, 12-Item Short-Form Health Survey, and Sheehan Disability Scale, respectively. Cognitive function was assessed using 2-back and Go/No-Go tasks. Through in vitro assays, the adhesion to fibronectin and the percentage of apoptosis of cEPCs were examined. Under correction for multiple comparisons, the adhesive function of cEPCs in BPD was significantly lower than that in the HCs (corrected P [Pcorr] = 0.027). The reduced adhesive function of cEPCs correlated significantly with increased scores in the YMRS (Pcorr = 0.0002) and the CGI-BP (Pcorr = 0.0009). A lower percentage of apoptotic cEPC cells was associated with greater commission errors in the 2-back (Pcorr = 0.028) and Go/No-Go tasks (Pcorr = 0.029). The cEPCs of the BPD group exhibited attenuated adhesive function. The altered adhesive and apoptotic functions of cEPCs are associated with manic symptom severity and response inhibition deficits in patients with BPD.
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Affiliation(s)
- Ying-Jay Liou
- Department of Psychiatry, Taipei Veterans General Hospital, No. 201, Shih-Pai Road, Sec. 2, 11217, Taipei, Taiwan
- Department of Psychiatry, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Mu-Hong Chen
- Department of Psychiatry, Taipei Veterans General Hospital, No. 201, Shih-Pai Road, Sec. 2, 11217, Taipei, Taiwan
- Department of Psychiatry, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ju-Wei Hsu
- Department of Psychiatry, Taipei Veterans General Hospital, No. 201, Shih-Pai Road, Sec. 2, 11217, Taipei, Taiwan
- Department of Psychiatry, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Kai-Lin Huang
- Department of Psychiatry, Taipei Veterans General Hospital, No. 201, Shih-Pai Road, Sec. 2, 11217, Taipei, Taiwan
- Department of Psychiatry, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Po-Hsun Huang
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, No. 201, Shih-Pai Road, Sec. 2, 11217, Taipei, Taiwan.
- Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
- Cardiovascular Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Ya-Mei Bai
- Department of Psychiatry, Taipei Veterans General Hospital, No. 201, Shih-Pai Road, Sec. 2, 11217, Taipei, Taiwan.
- Department of Psychiatry, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
- Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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The Microenvironment That Regulates Vascular Wall Stem/Progenitor Cells in Vascular Injury and Repair. BIOMED RESEARCH INTERNATIONAL 2022; 2022:9377965. [PMID: 35958825 PMCID: PMC9357805 DOI: 10.1155/2022/9377965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 11/17/2022]
Abstract
Vascular repair upon injury is a frequently encountered pathology in cardiovascular diseases, which is crucial for the maintenance of arterial homeostasis and function. Stem/progenitor cells located on vascular walls have multidirectional differentiation potential and regenerative ability. It has been demonstrated that stem/progenitor cells play an essential role in the basic medical research and disease treatment. The dynamic microenvironment around the vascular wall stem/progenitor cells (VW-S/PCs) possesses many stem cell niche-like characteristics to support and regulate cells' activities, maintaining the properties of stem cells. Under physiological conditions, vascular homeostasis is a cautiously balanced and efficient interaction between stem cells and the microenvironment. These interactions contribute to the vascular repair and remodeling upon vessel injury. However, the signaling mechanisms involved in the regulation of microenvironment on stem cells remain to be further elucidated. Understanding the functional characteristics and potential mechanisms of VW-S/PCs is of great significance for both basic and translational research. This review underscores the microenvironment-derived signals that regulate VW-S/PCs and aims at providing new targets for the treatment of related cardiovascular diseases.
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Guo F, Ren Z, Liu D, Wang L, Hou X, Chen W. The Inhibitory Effect of Regulatory T Cells on the Intimal Hyperplasia of Tissue-Engineered Blood Vessels in Diabetic Pigs. Front Bioeng Biotechnol 2022; 10:929867. [PMID: 35957644 PMCID: PMC9360552 DOI: 10.3389/fbioe.2022.929867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 06/17/2022] [Indexed: 11/13/2022] Open
Abstract
Severe inflammatory response and functional impairment of endothelial progenitor cells (EPCs) often lead to the implantation failure of EPC-captured tissue-engineered blood vessels (TEBVs) in diabetes. Regulatory T cells (Treg cells) are the most important inhibitory immune cells, but their effects in angiogenesis remain undefined, and the differences in the microenvironment may be an important reason. Here, we constructed a TEBV coated with an anti-CD34 antibody-functionalized heparin-collagen multilayer (anti-CD34 antibody-modified TEBV) using layer-by-layer self-assembly. Then, TEBVs were implanted into diabetic pigs. All TEBVs remained unobstructed 60 days after implantation, although varying degrees of intimal hyperplasia were detectable. Severe intimal hyperplasia was observed in the control group and peripheral injection of Treg cells group. Intravenous injection of Treg cells significantly inhibited intimal hyperplasia, inflammation, and cell apoptosis. Moreover, intravenous injection increased the proportion of circulating EPCs, while peripheral injection did not have these effects and reduced microvessel density around the TEBV. Interestingly, many Nestin+ cells could be detected in TEBVs, most of which were fusiform, showing the characteristics of smooth-muscle cells. Treg cell intravenous transplantation markedly reduced the number of Nestin+ cells in the TEBV. In conclusion, Treg cells inhibited the intimal hyperplasia of TEBVs in diabetic pigs by promoting EPC mobilization, anti-inflammatory action, and cellular protection.
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Affiliation(s)
- Fengjie Guo
- Outpatient Department, The 8th Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zhipeng Ren
- Department of Thoracic Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Dongxu Liu
- Department of Pathology, The 8th Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Linghui Wang
- Department of Thoracic Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xiaobin Hou
- Department of Thoracic Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, China
- *Correspondence: Wen Chen, ; Xiaobin Hou,
| | - Wen Chen
- Department of Pathology, The 8th Medical Center, Chinese PLA General Hospital, Beijing, China
- *Correspondence: Wen Chen, ; Xiaobin Hou,
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Huang H, Huang W. Regulation of Endothelial Progenitor Cell Functions in Ischemic Heart Disease: New Therapeutic Targets for Cardiac Remodeling and Repair. Front Cardiovasc Med 2022; 9:896782. [PMID: 35677696 PMCID: PMC9167961 DOI: 10.3389/fcvm.2022.896782] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/02/2022] [Indexed: 12/16/2022] Open
Abstract
Ischemic heart disease (IHD) is the leading cause of morbidity and mortality worldwide. Ischemia and hypoxia following myocardial infarction (MI) cause subsequent cardiomyocyte (CM) loss, cardiac remodeling, and heart failure. Endothelial progenitor cells (EPCs) are involved in vasculogenesis, angiogenesis and paracrine effects and thus have important clinical value in alternative processes for repairing damaged hearts. In fact, this study showed that the endogenous repair of EPCs may not be limited to a single cell type. EPC interactions with cardiac cell populations and mesenchymal stem cells (MSCs) in ischemic heart disease can attenuate cardiac inflammation and oxidative stress in a microenvironment, regulate cell survival and apoptosis, nourish CMs, enhance mature neovascularization, alleviate adverse ventricular remodeling after infarction and enhance ventricular function. In this review, we introduce the definition and discuss the origin and biological characteristics of EPCs and summarize the mechanisms of EPC recruitment in ischemic heart disease. We focus on the crosstalk between EPCs and endothelial cells (ECs), smooth muscle cells (SMCs), CMs, cardiac fibroblasts (CFs), cardiac progenitor cells (CPCs), and MSCs during cardiac remodeling and repair. Finally, we discuss the translation of EPC therapy to the clinic and treatment strategies.
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Singer AJ. Healing Mechanisms in Cutaneous Wounds: Tipping the Balance. TISSUE ENGINEERING. PART B, REVIEWS 2022; 28:1151-1167. [PMID: 34915757 PMCID: PMC9587785 DOI: 10.1089/ten.teb.2021.0114] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Acute and chronic cutaneous wounds pose a significant health and economic burden. Cutaneous wound healing is a complex process that occurs in four distinct, yet overlapping, highly coordinated stages: hemostasis, inflammation, proliferation, and remodeling. Postnatal wound healing is reparative, which can lead to the formation of scar tissue. Regenerative wound healing occurs during fetal development and in restricted postnatal tissues. This process can restore the wound to an uninjured state by producing new skin cells from stem cell reservoirs, resulting in healing with minimal or no scarring. Focusing on the pathophysiology of acute burn wounds, this review highlights reparative and regenerative healing mechanisms (including the role of cells, signaling molecules, and the extracellular matrix) and discusses how components of regenerative healing are being used to drive the development of novel approaches and therapeutics aimed at improving clinical outcomes. Important components of regenerative healing, such as stem cells, growth factors, and decellularized dermal matrices, are all being evaluated to recapitulate more closely the natural regenerative healing process.
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Affiliation(s)
- Adam J Singer
- Department of Emergency Medicine, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, USA
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Li M, Liu Y, Fu Y, Gong R, Xia H, Huang X, Wu Y. Interleukin-35 inhibits lipopolysaccharide-induced endothelial cell activation by downregulating inflammation and apoptosis. Exp Cell Res 2021; 407:112784. [PMID: 34508746 DOI: 10.1016/j.yexcr.2021.112784] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 08/11/2021] [Accepted: 08/13/2021] [Indexed: 01/20/2023]
Abstract
Inflammation is an essential factor contributing to sepsis-induced endothelial cell (EC) activation. Interleukin-35 (IL-35) is an anti-inflammatory/immunosuppressive cytokine that exerts protective effects on many inflammatory diseases. In this study, we investigated the effects of IL-35 on lipopolysaccharide (LPS)-induced EC activation and the potential underlying mechanism. Human umbilical vein endothelial cells (HUVECs) were incubated with LPS (1 μg/ml) for 24 h and then cocultured with different concentrations (0, 1, 10, or 100 ng/ml) of recombinant human IL-35 (rhIL-35) for 12 h. Flow cytometry analysis revealed that IL-35 inhibited LPS-induced HUVEC apoptosis in a dose-dependent manner. RT-qPCR and Western blot analyses showed significantly higher mRNA and protein levels of the adhesion molecules intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) and the inflammatory factors IL-6 and IL-8 in the LPS group than in the control group. These changes were alleviated by IL-35 treatment, suggesting that IL-35 protects ECs by downregulating inflammation. Furthermore, IL-35 induced signal transducer and activator of transcription 1 (STAT1) and STAT4 activation and promoted their interaction. Blocking STAT1 or STAT4 expression by fludarabine (STAT1 inhibitor) treatment or siRNA-STAT4-interfering fragment transfection inhibited the protective effect of IL-35 on ECs. Moreover, we observed a similar protective effect of IL-35 treatment on ECs in a mouse sepsis model induced by intraperitoneal LPS injection. This study indicated that IL-35 exerts anti-inflammatory and antiapoptotic effects on LPS-induced EC activation by activating the STAT1 and STAT4 signaling pathways.
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Affiliation(s)
- Meng Li
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
| | - Yue Liu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
| | - Yang Fu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
| | - Ren Gong
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
| | - Huasong Xia
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
| | - Xiao Huang
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
| | - Yanqing Wu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
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Abstract
The development of tumors requires an initiator event, usually exposure to DNA damaging agents that cause genetic alterations such as gene mutations or chromosomal abnormalities, leading to deregulated cell proliferation. Although the mere stochastic accumulation of further mutations may cause tumor progression, it is now clear that an inflammatory microenvironment has a major tumor-promoting influence on initiated cells, in particular when a chronic inflammatory reaction already existed before the initiated tumor cell was formed. Moreover, inflammatory cells become mobilized in response to signals emanating from tumor cells. In both cases, the microenvironment provides signals that initiated tumor cells perceive by membrane receptors and transduce via downstream kinase cascades to modulate multiple cellular processes and respond with changes in cell gene expression, metabolism, and morphology. Cytokines, chemokines, and growth factors are examples of major signals secreted by immune cells, fibroblast, and endothelial cells and mediate an intricate cell-cell crosstalk in an inflammatory microenvironment, which contributes to increased cancer cell survival, phenotypic plasticity and adaptation to surrounding tissue conditions. Eventually, consequent changes in extracellular matrix stiffness and architecture, coupled with additional genetic alterations, further fortify the malignant progression of tumor cells, priming them for invasion and metastasis. Here, we provide an overview of the current knowledge on the composition of the inflammatory tumor microenvironment, with an emphasis on the major signals and signal-transducing events mediating different aspects of stromal cell-tumor cell communication that ultimately lead to malignant progression.
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Effects of High Glucose Concentration on Pericyte-Like Differentiated Human Adipose-Derived Mesenchymal Stem Cells. Int J Mol Sci 2021; 22:ijms22094604. [PMID: 33925714 PMCID: PMC8125146 DOI: 10.3390/ijms22094604] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/19/2021] [Accepted: 04/24/2021] [Indexed: 02/07/2023] Open
Abstract
A pericyte-like differentiation of human adipose-derived mesenchymal stem cells (ASCs) was tested in in vitro experiments for possible therapeutic applications in cases of diabetic retinopathy (DR) to replace irreversibly lost pericytes. For this purpose, pericyte-like ASCs were obtained after their growth in a specific pericyte medium. They were then cultured in high glucose conditions to mimic the altered microenvironment of a diabetic eye. Several parameters were monitored, especially those particularly affected by disease progression: cell proliferation, viability and migration ability; reactive oxygen species (ROS) production; inflammation-related cytokines and angiogenic factors. Overall, encouraging results were obtained. In fact, even after glucose addition, ASCs pre-cultured in the pericyte medium (pmASCs) showed high proliferation rate, viability and migration ability. A considerable increase in mRNA expression levels of the anti-inflammatory cytokines transforming growth factor-β1 (TGF-β1) and interleukin-10 (IL-10) was observed, associated with reduction in ROS production, and mRNA expression of pro-inflammatory cytokines interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α), and angiogenic factors. Finally, a pmASC-induced better organization of tube-like formation by retinal endothelial cells was observed in three-dimensional co-culture. The pericyte-like ASCs obtained in these experiments represent a valuable tool for the treatment of retinal damages occurring in diabetic patients.
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Camacho V, Matkins VR, Patel SB, Lever JM, Yang Z, Ying L, Landuyt AE, Dean EC, George JF, Yang H, Ferrell PB, Maynard CL, Weaver CT, Turnquist HR, Welner RS. Bone marrow Tregs mediate stromal cell function and support hematopoiesis via IL-10. JCI Insight 2020; 5:135681. [PMID: 33208555 PMCID: PMC7710301 DOI: 10.1172/jci.insight.135681] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 10/07/2020] [Indexed: 12/31/2022] Open
Abstract
The nonimmune roles of Tregs have been described in various tissues, including the BM. In this study, we comprehensively phenotyped marrow Tregs, elucidating their key features and tissue-specific functions. We show that marrow Tregs are migratory and home back to the marrow. For trafficking, marrow Tregs use S1P gradients, and disruption of this axis allows for specific targeting of the marrow Treg pool. Following Treg depletion, the function and phenotype of both mesenchymal stromal cells (MSCs) and hematopoietic stem cells (HSCs) was impaired. Transplantation also revealed that a Treg-depleted niche has a reduced capacity to support hematopoiesis. Finally, we found that marrow Tregs are high producers of IL-10 and that Treg-secreted IL-10 has direct effects on MSC function. This is the first report to our knowledge revealing that Treg-secreted IL-10 is necessary for stromal cell maintenance, and our work outlines an alternative mechanism by which this cytokine regulates hematopoiesis.
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Affiliation(s)
| | | | | | - Jeremie M. Lever
- Nephrology Research and Training Center, Division of Nephrology, Department of Medicine, and
| | - Zhengqin Yang
- Division of Cardiothoracic Surgery, Department of Surgery, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Li Ying
- Cancer Science Institute of Singapore & Department of Biochemistry, National University of Singapore, Singapore
| | - Ashley E. Landuyt
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Emma C. Dean
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - James F. George
- Division of Cardiothoracic Surgery, Department of Surgery, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Henry Yang
- Cancer Science Institute of Singapore & Department of Biochemistry, National University of Singapore, Singapore
| | - Paul Brent Ferrell
- Division of Hematology/Oncology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Craig L. Maynard
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Casey T. Weaver
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Heth R. Turnquist
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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11
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Insufficient production of IL-10 from M2 macrophages impairs in vitro endothelial progenitor cell differentiation in patients with Moyamoya disease. Sci Rep 2019; 9:16752. [PMID: 31727941 PMCID: PMC6856135 DOI: 10.1038/s41598-019-53114-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 10/29/2019] [Indexed: 12/11/2022] Open
Abstract
Moyamoya disease (MMD) is well known to be caused by insufficient cerebral vascular formation. However, the essential pathogenesis has not yet been identified. Using our recently developed technique of generating vasculogenic and anti-inflammatory cultures, we investigated endothelial progenitor cell (EPC) expansion and differentiation under the cytokine milieu generated by the peripheral blood mononuclear cells (PBMNCs) of the operated and non-operated MMD patients. EPC colony forming assay of the cultured PBMNCs disclosed the decline of the definitive EPC colony numbers in the both MMD patients. The level of interleukin-10 (IL-10) was lower in secretory cytokines from the cultured PBMNCs of MMD patients than that in that of controls using a cytometric bead array. The addition of human recombinant IL-10 to PBMNCs cultured from MMD patients restored the EPC colony forming potential of MMD PBMNCs. Following phorbol myristate acetate stimulation of the cultured PBMNCs, flow cytometry revealed a decrease in intracellular IL-10 storage in the main cell populations of the PBMNCs cultured from MMD patients relative to those cultured from controls. The present data provide the expected mechanism of vascular malformation in MMD pathogenesis originated from the insufficient production of IL-10 secreting cells from PBMNCs fostering EPC expansion and differentiation.
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Wu J, Gu J, Zhou S, Lu H, Lu Y, Lu L, Wang X. Anti-IL-22 Antibody Attenuates Acute Graft-versus-Host Disease via Increasing Foxp3 + T Cell through Modulation of CD11b + Cell Function. J Immunol Res 2018; 2018:1605341. [PMID: 30159338 PMCID: PMC6109487 DOI: 10.1155/2018/1605341] [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: 02/25/2018] [Revised: 06/20/2018] [Accepted: 06/28/2018] [Indexed: 12/14/2022] Open
Abstract
Transfer of splenocytes isolated from B6 mice into normal B6D2F1 mice induces acute graft-versus-host disease (aGVHD), resulting in the expansion of donor cytotoxic T lymphocytes that eliminate recipient B cells. The cytokine IL-22, secreted by Th1 cells, Th17 cells, and innate immune cells, is structurally related to IL-10. To investigate the association between IL-22 and aGVHD, an anti-mouse IL-22 antibody (IL-22Ab) was used to ablate IL-22 activity in a mouse aGVHD model. Administration of IL-22Ab significantly reduced the progression of aGVHD in B6D2F1 recipients of B6 grafts. IL-22Ab treatment also decreased the percentage of interferon-γ+ and tumor necrosis factor-α+ T cells but increased the number of forkhead box p3+ regulatory T cells (Tregs). In the presence of Tregs and donor CD11b+ cells, IL-22Ab protected against aGVHD. In vitro Treg induction was more efficient when CD4+CD25- T cells differentiated in the presence of CD11b+ cells obtained from IL-22Ab-treated GVHD mice, compared with cocultured untreated control cells. Finally, IL-22Ab modulated the expression of cytokines and costimulatory molecules in CD11b+ cells in aGVHD mice. We therefore conclude that IL-22Ab administration represents a viable approach for treating aGVHD.
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Affiliation(s)
- Jianbo Wu
- Department of Liver Surgery, First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Living Donor Liver Transplantation, National Health and Family Planning Commission, Nanjing, Jiangsu Province, China
- Department of General Surgery, Changzhou No. 2 People's Hospital Affiliated to Nanjing Medical University, Changzhou City, Jiangsu Province, China
| | - Jian Gu
- Department of Liver Surgery, First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Living Donor Liver Transplantation, National Health and Family Planning Commission, Nanjing, Jiangsu Province, China
| | - Shun Zhou
- Department of Liver Surgery, First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Living Donor Liver Transplantation, National Health and Family Planning Commission, Nanjing, Jiangsu Province, China
| | - Hao Lu
- Department of Liver Surgery, First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Living Donor Liver Transplantation, National Health and Family Planning Commission, Nanjing, Jiangsu Province, China
| | - Yunjie Lu
- Department of Liver Surgery, First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Living Donor Liver Transplantation, National Health and Family Planning Commission, Nanjing, Jiangsu Province, China
| | - Ling Lu
- Department of Liver Surgery, First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Living Donor Liver Transplantation, National Health and Family Planning Commission, Nanjing, Jiangsu Province, China
| | - Xuehao Wang
- Department of Liver Surgery, First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Living Donor Liver Transplantation, National Health and Family Planning Commission, Nanjing, Jiangsu Province, China
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13
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Lin R, Chen F, Wen S, Teng T, Pan Y, Huang H. Interleukin-10 attenuates impairment of the blood-brain barrier in a severe acute pancreatitis rat model. JOURNAL OF INFLAMMATION-LONDON 2018; 15:4. [PMID: 29497350 PMCID: PMC5828420 DOI: 10.1186/s12950-018-0180-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 02/21/2018] [Indexed: 01/18/2023]
Abstract
Background Impairment of the blood-brain barrier (BBB) in severe acute pancreatitis (SAP) could result in life-threatening pancreatic encephalopathy. Interleukin-10 (IL-10) is a classical cytokine that is well-known for its strong immunoregulatory and anti-inflammatory abilities. However, whether and how IL-10 protects the BBB in SAP are still unclear. Methods This study includes in vivo experiments using a SAP rat model and in vitro experiments using an in vitro BBB model consisting of a monolayer of brain microvascular endothelial cells (BMECs). The study groups are divided into the control, SAP (in vivo)/TNF-α (in vitro), IL-10 treatment, IL-10 + signal transducer and activator of transcription 3 (STAT3) inhibitor S3I-201 treatment groups. Pancreatic pathological scores, serum amylase, serum TNF-α levels and BBB permeability by Evan’s blue assay in SAP rat models were evaluated. BMEC apoptosis in SAP rats or induced by TNF-αin vitro was detected by terminal-deoxynucleotidyl transferase-mediated nick end labeling (TUNEL) and flow cytometry, separately. Expression levels of claudin-5 and proteins involved in the STAT3 signaling pathway were measured by Western blotting. Location and changes of junctional structure of claudin-5 on BMECs were assessed by immunohistochemistry and immunofluorescence. Results In vivo, IL-10 alleviated the severity of inflammation, attenuated the increased BBB permeability in SAP rat models by reducing BMEC apoptosis via the STAT3 pathway and ameliorated the down-regulation of claudin-5 expression in BMECs; in vitro, IL-10 improved BBB integrity against TNF-α by attenuating BMEC apoptosis via the STAT3 pathway, the impairment of tight junction structure and the down-regulation of claudin-5 expression in BMECs. Conclusions IL-10 improves BBB properties in SAP by attenuating the down-regulation of claudin-5 expression and the impairment of tight junctions and by STAT3 pathway-mediated anti-apoptotic effects on BMECs.
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Affiliation(s)
- Ronggui Lin
- Department of General surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian People's Republic of China
| | - Fei Chen
- Department of General surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian People's Republic of China
| | - Shi Wen
- Department of General surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian People's Republic of China
| | - Tianhong Teng
- Department of General surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian People's Republic of China
| | - Yu Pan
- Department of General surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian People's Republic of China
| | - Heguang Huang
- Department of General surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian People's Republic of China
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14
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Varberg KM, Winfree S, Dunn KW, Haneline LS. Kinetic Analysis of Vasculogenesis Quantifies Dynamics of Vasculogenesis and Angiogenesis In Vitro. J Vis Exp 2018. [PMID: 29443032 PMCID: PMC5912317 DOI: 10.3791/57044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Vasculogenesis is a complex process by which endothelial stem and progenitor cells undergo de novo vessel formation. Quantitative assessment of vasculogenesis has become a central readout of endothelial progenitor cell functionality, and therefore, several attempts have been made to improve both in vitro and in vivo vasculogenesis models. However, standard methods are limited in scope, with static measurements failing to capture many aspects of this highly dynamic process. Therefore, the goal of developing this novel protocol was to assess the kinetics of in vitro vasculogenesis in order to quantitate rates of network formation and stabilization, as well as provide insight into potential mechanisms underlying vascular dysfunction. Application of this protocol is demonstrated using fetal endothelial colony forming cells (ECFCs) exposed to maternal diabetes mellitus. Fetal ECFCs were derived from umbilical cord blood following birth, cultured, and plated in slides containing basement membrane matrix, where they underwent vasculogenesis. Images of the entire slide wells were acquired using time-lapse phase contrast microscopy over 15 hours. Images were analyzed for derivation of quantitative data using an analysis software called Kinetic Analysis of Vasculogenesis (KAV). KAV uses image segmentation followed by skeletonization to analyze network components from stacks of multi-time point phase contrast images to derive ten parameters (9 measured, 1 calculated) of network structure including: closed networks, network areas, nodes, branches, total branch length, average branch length, triple-branched nodes, quad-branched nodes, network structures, and the branch to node ratio. Application of this protocol identified altered rates of vasculogenesis in ECFCs obtained from pregnancies complicated by diabetes mellitus. However, this technique has broad implications beyond the scope reported here. Implementation of this approach will enhance mechanistic assessment and improve functional readouts of vasculogenesis and other biologically important branching processes in numerous cell types or disease states.
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Affiliation(s)
- Kaela M Varberg
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine; Herman B Wells Center for Pediatric Research, Indiana University School of Medicine
| | - Seth Winfree
- Indiana Center for Biological Microscopy, Indiana University School of Medicine; Department of Medicine, Indiana University School of Medicine
| | - Kenneth W Dunn
- Indiana Center for Biological Microscopy, Indiana University School of Medicine; Department of Medicine, Indiana University School of Medicine
| | - Laura S Haneline
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine; Herman B Wells Center for Pediatric Research, Indiana University School of Medicine; Department of Pediatrics, Indiana University School of Medicine; Department of Microbiology and Immunology, Indiana University School of Medicine; Indiana University Simon Cancer Center, Indiana University School of Medicine;
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15
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Mollazadeh H, Cicero AFG, Blesso CN, Pirro M, Majeed M, Sahebkar A. Immune modulation by curcumin: The role of interleukin-10. Crit Rev Food Sci Nutr 2017; 59:89-101. [PMID: 28799796 DOI: 10.1080/10408398.2017.1358139] [Citation(s) in RCA: 240] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Cytokines are small secreted proteins released by different types of cells with specific effects on cellular signaling and communication via binding to their receptors on the cell surface. IL-10 is known to be a pleiotropic and potent anti-inflammatory and immunosuppressive cytokine that is produced by both innate and adaptive immunity cells including dendritic cells, macrophages, mast cells, natural killer cells, eosinophils, neutrophils, B cells, CD8+ T cells, and TH1, TH2, and TH17 and regulatory T cells. Both direct and indirect activation of the stress axis promotes IL-10 secretion. IL-10 deregulation plays a role in the development of a large number of inflammatory diseases such as neuropathic pain, Parkinson's disease, Alzheimer's disease, osteoarthritis, rheumatoid arthritis, psoriasis, systemic lupus erythematosus, type 1 diabetes, inflammatory bowel disease, and allergy. Curcumin is a natural anti-inflammatory compound able to induce the expression and production of IL-10 and enhancing its action on a large number of tissues. In vitro and in pre-clinical models curcumin is able to modulate the disease pathophysiology of conditions such as pain and neurodegenerative diseases, bowel inflammation, and allergy, but also of infections and cancer through its effect on IL-10 secretion. In humans, at least one part of the positive effects of curcumin on health could be related to its ability to enhance IL-10 -mediated effects.
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Affiliation(s)
- Hamid Mollazadeh
- a Department of Physiology and Pharmacology, School of Medicine , North Khorasan University of Medical Sciences , Bojnurd , Iran
| | - Arrigo F G Cicero
- b Department of Medical and Surgical Sciences , University of Bologna , Via Albertoni 15, Bologna , Italy
| | | | - Matteo Pirro
- d Unit of Internal Medicine, Angiology and Arteriosclerosis Diseases, Department of Medicine , University of Perugia , Perugia , Italy
| | | | - Amirhossein Sahebkar
- f Department of Medical Biotechnology, Biotechnology Research Center , Mashhad University of Medical Sciences , Mashhad , Iran
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16
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Abstract
INTRODUCTION Over the past decade, it has become clear that long-term engraftment of any ex vivo expanded cell product transplanted into injured myocardium is modest and all therapeutic regeneration is mediated by stimulation of endogenous repair rather than differentiation of transplanted cells into working myocardium. Given that increasing the retention of transplanted cells boosts myocardial function, focus on the fundamental mechanisms limiting retention and survival of transplanted cells may enable strategies to help to restore normal cardiac function. Areas covered: This review outlines the challenges confronting cardiac engraftment of ex vivo expanded cells and explores means of enhancing cell-mediated repair of injured myocardium. Expert opinion: Stem cell therapy has already come a long way in terms of regenerating damaged hearts though the poor retention of transplanted cells limits the full potential of truly cardiotrophic cell products. Multifaceted strategies directed towards fundamental mechanisms limiting the long-term survival of transplanted cells will be needed to enhance transplanted cell retention and cell-mediated repair of damaged myocardium for cardiac cell therapy to reach its full potential.
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Affiliation(s)
| | - Darryl R Davis
- a University of Ottawa Heart Institute , Ottawa , ON , Canada
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17
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Pirro M, Bianconi V, Paciullo F, Mannarino MR, Bagaglia F, Sahebkar A. Lipoprotein(a) and inflammation: A dangerous duet leading to endothelial loss of integrity. Pharmacol Res 2017; 119:178-187. [DOI: 10.1016/j.phrs.2017.02.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 01/08/2017] [Accepted: 02/02/2017] [Indexed: 12/15/2022]
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18
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Varberg KM, Winfree S, Chu C, Tu W, Blue EK, Gohn CR, Dunn KW, Haneline LS. Kinetic analyses of vasculogenesis inform mechanistic studies. Am J Physiol Cell Physiol 2017; 312:C446-C458. [PMID: 28100488 DOI: 10.1152/ajpcell.00367.2016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 01/12/2017] [Accepted: 01/13/2017] [Indexed: 12/21/2022]
Abstract
Vasculogenesis is a complex process by which endothelial stem and progenitor cells undergo de novo vessel formation. Quantitative assessment of vasculogenesis is a central readout of endothelial progenitor cell functionality. However, current assays lack kinetic measurements. To address this issue, new approaches were developed to quantitatively assess in vitro endothelial colony-forming cell (ECFC) network formation in real time. Eight parameters of network structure were quantified using novel Kinetic Analysis of Vasculogenesis (KAV) software. KAV assessment of structure complexity identified two phases of network formation. This observation guided the development of additional vasculogenic readouts. A tissue cytometry approach was established to quantify the frequency and localization of dividing ECFCs. Additionally, Fiji TrackMate was used to quantify ECFC displacement and speed at the single-cell level during network formation. These novel approaches were then implemented to identify how intrauterine exposure to maternal diabetes mellitus (DM) impairs fetal ECFC vasculogenesis. Fetal ECFCs exposed to maternal DM form fewer initial network structures, which are not stable over time. Correlation analyses demonstrated that ECFC samples with greater division in branches form fewer closed network structures. Additionally, reductions in average ECFC movement over time decrease structural connectivity. Identification of these novel phenotypes utilizing the newly established methodologies provides evidence for the cellular mechanisms contributing to aberrant ECFC vasculogenesis.
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Affiliation(s)
- Kaela M Varberg
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana.,Herman B. Wells Center for Pediatric Research, Indianapolis, Indiana
| | - Seth Winfree
- Indiana Center for Biological Microscopy, Indianapolis, Indiana.,Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Chenghao Chu
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Wanzhu Tu
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Emily K Blue
- Herman B. Wells Center for Pediatric Research, Indianapolis, Indiana.,Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Cassandra R Gohn
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana.,Herman B. Wells Center for Pediatric Research, Indianapolis, Indiana
| | - Kenneth W Dunn
- Indiana Center for Biological Microscopy, Indianapolis, Indiana.,Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Laura S Haneline
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana; .,Herman B. Wells Center for Pediatric Research, Indianapolis, Indiana.,Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana.,Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana; and.,Indiana University Simon Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana
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19
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Chong MSK, Ng WK, Chan JKY. Concise Review: Endothelial Progenitor Cells in Regenerative Medicine: Applications and Challenges. Stem Cells Transl Med 2016; 5:530-8. [PMID: 26956207 DOI: 10.5966/sctm.2015-0227] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 12/07/2015] [Indexed: 02/07/2023] Open
Abstract
UNLABELLED Endothelial progenitor cells (EPCs) are currently being studied as candidate cell sources for revascularization strategies. Significant advances have been made in understanding the biology of EPCs, and preclinical studies have demonstrated the vasculogenic, angiogenic, and beneficial paracrine effects of transplanted EPCs in the treatment of ischemic diseases. Despite these promising results, widespread clinical acceptance of EPCs for clinical therapies remains hampered by several challenges. The present study provides a concise summary of the different EPC populations being studied for ischemic therapies and their known roles in the healing of ischemic tissues. The challenges and issues surrounding the use of EPCs and the current strategies being developed to improve the harvest efficiency and functionality of EPCs for application in regenerative medicine are discussed. SIGNIFICANCE Endothelial progenitor cells (EPCs) have immense clinical value for cardiovascular therapies. The present study provides a concise description of the EPC subpopulations being evaluated for clinical applications. The current major lines of investigation involving preclinical and clinical evaluations of EPCs are discussed, and significant gaps limiting the translation of EPCs are highlighted. The present report could be useful for clinicians and clinical researchers with interests in ischemic therapy and for basic scientists working in the related fields of tissue engineering and regenerative medicine.
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Affiliation(s)
- Mark Seow Khoon Chong
- School of Chemical and Biochemical Engineering, Nanyang Technological University, Singapore
| | - Wei Kai Ng
- School of Chemical and Biochemical Engineering, Nanyang Technological University, Singapore
| | - Jerry Kok Yen Chan
- Department of Reproductive Medicine, KK Women's and Children's Hospital, Singapore Cancer and Stem Cell Biology, Duke-NUS Graduate Medical School, Singapore Department of Obstetrics and Gynaecology, National University of Singapore, Singapore
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Saad MI, Abdelkhalek TM, Saleh MM, Kamel MA, Youssef M, Tawfik SH, Dominguez H. Insights into the molecular mechanisms of diabetes-induced endothelial dysfunction: focus on oxidative stress and endothelial progenitor cells. Endocrine 2015; 50:537-67. [PMID: 26271514 DOI: 10.1007/s12020-015-0709-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 07/25/2015] [Indexed: 12/13/2022]
Abstract
Diabetes mellitus is a heterogeneous, multifactorial, chronic disease characterized by hyperglycemia owing to insulin insufficiency and insulin resistance (IR). Recent epidemiological studies showed that the diabetes epidemic affects 382 million people worldwide in 2013, and this figure is expected to be 600 million people by 2035. Diabetes is associated with microvascular and macrovascular complications resulting in accelerated endothelial dysfunction (ED), atherosclerosis, and cardiovascular disease (CVD). Unfortunately, the complex pathophysiology of diabetic cardiovascular damage is not fully understood. Therefore, there is a clear need to better understand the molecular pathophysiology of ED in diabetes, and consequently, better treatment options and novel efficacious therapies could be identified. In the light of recent extensive research, we re-investigate the association between diabetes-associated metabolic disturbances (IR, subclinical inflammation, dyslipidemia, hyperglycemia, dysregulated production of adipokines, defective incretin and gut hormones production/action, and oxidative stress) and ED, focusing on oxidative stress and endothelial progenitor cells (EPCs). In addition, we re-emphasize that oxidative stress is the final common pathway that transduces signals from other conditions-either directly or indirectly-leading to ED and CVD.
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Affiliation(s)
- Mohamed I Saad
- Department of Biochemistry, Medical Research Institute, Alexandria University, Alexandria, Egypt.
- Hudson Institute of Medical Research, School of Clinical Sciences, Monash University, Melbourne, VIC, Australia.
| | - Taha M Abdelkhalek
- Department of Human Genetics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Moustafa M Saleh
- Department of Human Genetics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Maher A Kamel
- Department of Biochemistry, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Mina Youssef
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Shady H Tawfik
- Department of Molecular Medicine, University of Padova, Padua, Italy
| | - Helena Dominguez
- Department of Biomedical Sciences, Copenhagen University, Copenhagen, Denmark
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